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medical terminology roots

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Root
Definition
abdomin   abdomen  
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acanth   thorny, spiny  
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acetabul   acetabulum (hip socket)  
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acou   hearing  
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acr   extremities; height  
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actin   ray; radaius  
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adenoid   adenoids  
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aden   gland  
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adrenal, adren   adrenal gland  
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aer   air; gas  
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albumin   albumin  
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algesi   pain  
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alveol   alveolous  
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ambly   dull; dim  
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amni, amnion   amnion  
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amyl   starch  
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andr   male  
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angi   vessel  
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anis   unequal; dissimilar  
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ankkyl   crooked; stiff; bent  
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antr   antrum  
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an   anus  
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aort   aorta  
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aponeur   aponeurosis  
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appendic   appendix  
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arche   first; beginning  
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arteri   artery  
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arteriol   arteriole (small artery)  
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arthr, articul   joint  
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atel   imperfect; incomplete  
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ather   yellowish; fatty plaque  
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atri   atrium  
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aur   ear  
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aut   self  
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axill   armpit  
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azot   urea; nitrogen  
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bacteri   bacteria  
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balan   glans penis  
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bi   life  
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bil   bile  
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blast   developing cell  
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blephar   eyelid  
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brachi   arm  
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bronch   bronchus  
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bronchiol   bronchiole  
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bucc   cheek  
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burs   bursa (cavity)  
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calc   calcium  
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cancer, carcin   cancer  
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cardi   heart  
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carp   carpals (wrist bones)  
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caud   tail; toward the lower part o the body  
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cec   cecum  
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celi   abdomen (abdominal cavity)  
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cephal   head  
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cerebell   cerebellum  
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cerebr   cerebellum; brain  
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cerumin   cerumen (earwax)  
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cervic   cervix  
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cheil   lip  
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chir   hand  
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cholangi   bile duct  
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chol   gall; bile  
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choledoch   common bile duct  
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chondr   cartilage  
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chori   chorion  
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chrom   color  
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clavic, clavicul   clavicle (collar bone)  
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col   colon  
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colp   vagina  
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coni   dust  
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conjunctiv   conjunctiva  
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core, cor   pupil  
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corne   cornea  
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coron   heart  
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cortic   cortex (outer layer of body organ)  
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cost   rib  
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crani   cranium (skull)  
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cry   cold  
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crypt   hidden  
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culd   culdesac  
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cutane   skin  
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cyan   blue  
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cyes   pregnancy  
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cyst   bladder; sac  
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cyt   cell  
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dacry   tear; tear duct  
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dactyl   fingers or toes  
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dent   tooth  
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dermat, derm   skin  
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dextr   right  
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diaphor   sweat  
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diaphragmat   diaphragm  
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dipl   two; double  
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dips   thirst  
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disk   intervertebral disk  
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diverticul   diverticulum  
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dors   back (of the body)  
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duoden   duodenum  
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dur   hard; dura mater  
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dynam   power or strength  
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ech   sound  
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ectop   located away from usual place  
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electr   electricity; electrical activity  
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embry   embryo; to be full  
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emmetr   a normal measures  
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encephal   brain  
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endocrin   endocrine  
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enter   intestines  
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epididym   epididymis  
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epiglott   epiglottis  
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episi   vulva  
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epitheli   epithelium  
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erythr   red  
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esophag   esophagus  
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esthesi   sensation; sensitivity; feeling  
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eti   cause (of disease)  
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faci   face  
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femor   femur (upper leg bone)  
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fet   fetus; unborn child  
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fibr   fibrous tissue; fibers  
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fibul   fibula (lower leg)  
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gangli, ganglion   ganglion  
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gastr   stomach  
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ger,geront   old age; aged  
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gingiv   gum  
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glomerul   glomerulus  
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gloss   tongue  
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glu   sweetness; sugar  
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glyc, glycos   sugar  
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gnath   jaw  
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gnos   knowledge  
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gon   seed  
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gravid   pregnancy  
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gynec, gyn   woman  
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hem, hemat   blood  
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hepat   liver  
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herni   hernia  
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heter   other  
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hidr   sweat  
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hist   tissue  
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hom   same  
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home   sameness; unchanging  
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humer   humerous (upper arm bone)  
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hydr   water  
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hymen   hymen  
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hypn   sleep  
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hyster   uterus  
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iatr   medicine; physician  
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ichthy   fish  
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ile   ileum  
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ili   ilium  
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immun   immune  
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irid, iri   iris  
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ischi   ischium  
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isch   deficiency; blockage  
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is   equal; same  
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jejun   jejunum  
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kal   potassium  
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kary   nucleus  
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kerat   horny tissue; hard  
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kin   movement  
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kinesi   movement; motion  
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kyph   hump  
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labi   lips  
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labyrinth   labyrinth  
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lacrim   tear duct; tear  
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lact   milk  
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lamin   lamina (thin; flat plate or layer)  
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lapar   abdomen  
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laryng   larynx  
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later   side  
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lei   smooth  
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leuk   white  
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lingu   tongue  
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lip   fat  
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lith   stone; calculus  
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lob   lobe  
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lord   bent foward  
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lymph   lymph  
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macr   abnormal largeness  
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mamm, mast   breast  
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mandibul   mandible (lower jawbone)  
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mastoid   mastoid  
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maxill   maxilla (upper jawbone)  
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meat   meatus (opening)  
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melan   black  
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mening   meninges  
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menisc   meniscos (crescent)  
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men   menstuation  
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ment   mind  
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metr   uterus  
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mon   one  
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morph   form; shape  
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muc   mucus  
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myc   fungus  
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myel   bone marrow; spinal cord  
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myelon   bone marrow  
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myos, my   muscle  
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myring   eardrum  
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narc   stupor  
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nas   nose  
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nat   birth  
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necr   death (cells; body)  
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nephr   kidney  
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neur   nerve  
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noct, nyct, nyctal   night  
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ocul   eye  
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olig   scanty; few  
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omphal   umbilicu; navel  
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onc   tumor  
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onych   nail  
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oo   egg; ovum  
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oophor   ovary  
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ophthalm   eye  
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opt   vision  
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orchid, orchi, orch   testis; testicle  
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organ   organ  
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or   mouth  
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orth   straight  
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oste   bone  
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ot   ear  
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ov   egg  
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ox   oxygen  
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pachy   thick  
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palat   palate  
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pancreat   pancreas  
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papill   nipple  
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parathyroid   parathyroid gland  
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par, part   bear; give birth to; labor  
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patell   patella (kneecap)  
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path   diease  
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pector   chest  
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ped   child; foot  
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pelv   pelvis; pelvic bone  
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perine   perineum  
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peritone   peritoneum  
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petr   stone  
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phac, phak   lens of the eye  
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phag   eat; swallow  
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phalang   pharynx  
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phas   speech  
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phleb   vein  
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phot   light  
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phren   mind  
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physi   nature  
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plasm   plasma  
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pleur   pleura  
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pneumat,pneum, pneumon   lung; air  
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pod   foot  
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poli   gray matter  
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poikil   varied; irregular  
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polyp   polyp; small growth  
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poster   back (of body)  
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prim   first  
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proct   rectum  
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prostat   prostate gland  
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pseud   fake; false  
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psych   mind  
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pub   pubis  
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puerper   childbirth  
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pulmon   lung  
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pupill   pupil  
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pyel   renal pelvis  
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pylor   pylorus (pyloric sphincter)  
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py   pus  
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pyr   fever; heat  
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quadr   four  
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rachi   vertebra; spinal or vertebral column  
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radic, radicul, rhiz   nerve root  
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radi   radius ( lower arm bone)  
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rect   rectum  
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ren   kidney  
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retin   retina  
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rhabd   rod shaped; striated  
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rhin   nose  
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rhytid   wrinkles  
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salping   fallopian (uterine) tube  
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sarc   flesh; connective tissue  
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scapul   scapula (shoulder bone)  
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scler   sclera  
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scoli   crooked; curved  
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seb   sebum (oil)  
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sept   septum  
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sial   saliva  
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sigmoid   sigmoid  
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sinus   sinus  
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somat   body  
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somn   sleep  
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son   sound  
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spermat, sperm   spermatozoan; sperm  
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sphygm   pulse  
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spir   breathe; breathing  
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splen   spleen  
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spondyl   vertebra; spinal or vertebral column  
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staped   stapes (middle ear bone)  
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staphyl   grapelike clusters  
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stern   sternum (breastbone)  
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steth   chest  
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stomat   mouth  
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strept   twisted chains  
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synovi   synovia; synovia membrane  
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system   system  
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tars   tarsals (ankle bone)  
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tars   edge of eyelid; tarsal (instep of foot)  
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tendin, tend, ten   tendon  
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test   testis; testicle  
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therm   heat  
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thorac   thorax (chest)  
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thromb   clot  
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thym   thymus gland  
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thyroid, thyr   thyroid gland  
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tibi   tibia (lower leg bone)  
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tom   cut; section  
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ton   tension; pressure  
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tonsill   tonsils  
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top   place  
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toxic   poision  
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trachel   neck; neckline  
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thrache   trachea  
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trich   hair  
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tympan   earadrum; middle ear  
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uln   ulna (lower arm bone)  
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ungn   nail  
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ureter   ureter  
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urethr   urethra  
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urin,ur   urine; urinary tract  
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uter   uterus  
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uvul   uvula  
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vagin   vagina  
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valv, valvol   valve  
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vas   vessel; duct  
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ven   vein  
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ventricul   ventricle  
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vertebr   vertebra; spinal or vertebral column  
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vesic   bladder; sac  
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vesicul   seminal vesicles  
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viscer   internal organs  
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vulv   vulva  
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xanth   yellow  
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xer   dry  
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