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Medical Terminology
Prefixes, Suffixes and Root Words
| Question | Answer |
|---|---|
| (o)logist | specialist |
| (o)logy | study of |
| (o)stomy | creating a new or artificial opening |
| (o)tomy | incision into |
| (r)rhagia | hemorrhage |
| (r)rhaphy | suture of |
| (r)rhea | discharge; flow |
| (r)rhexis | rupture |
| a- | no; not; without |
| ab- | away from |
| abdomin/o | abdomen |
| -ac | pertaining to |
| acid/o | sour; bitter |
| acoust/o | hearing |
| acr/o | extremities |
| aden/o | gland |
| adenoid/o | adenoid |
| adip/o | fat |
| adren/o | adrenal glands |
| adrenal/o | adrenal glands |
| agglutin/o | to clump |
| -al | pertaining to |
| -algia | pain |
| alveol/o | alveolus |
| amni/o | amnion |
| amnion/o | amnion |
| an- | no; not; without |
| an/o | anus |
| ana- | no; not; without |
| andr/o | male; man |
| aneurysm/o | aneurysm |
| angi/o | vessel |
| ankyl/o | stiff |
| ante- | before |
| anter/o | front |
| anti- | against |
| antrac/o | coal |
| append/o | appendix |
| appendic/o | appendix |
| aque/o | watery |
| arachn/o | spider |
| arter/o | artery |
| arteri/o | artery |
| arteriol/o | arteriole |
| arthr/o | joint |
| articul/o | joint |
| -ary | pertaining to |
| -asthenia | without feeling or sensation |
| astr- | star |
| atel/o | incomplete |
| ather/o | fat; fatty plaque; fatty |
| audi/o | hearing; sound |
| auto- | self |
| balan/o | glans penis |
| bas/o | base |
| bi- | two; double; both |
| bil/i | bile; gall |
| -blast | immature; embryonic |
| blast/o | immature |
| blephar/o | eyelid |
| brady- | slow |
| bronch/o; bronch/I | bronchus |
| bronchiol/o | bronchiole |
| bucc/o | cheek |
| burs/o | bursa; sac |
| calc/i | calcium |
| -capnia | carbon dioxide |
| carcin- | cancer; malignant |
| cardi/o | heart |
| carp/o | wrist bones |
| cec/o | cecum |
| ceil/o | abdomen |
| -cele | hernia; protrusion |
| celi/o | abdomen |
| -centesis | surgical puncture to remove fluid |
| cephal/o | head |
| cerebell/o | cerebellum |
| cerebr/o | cerebrum |
| cervic/o | cervix |
| cheil/o | lips |
| chol/e | bile; gall |
| cholangi/o | bile duct |
| cholecyst/o | gallblader |
| choledoch/o | common bile duct |
| chondr/o | cartilate |
| chori/o | chorion |
| -clasia | surgical breaking |
| -clasis | surgical breaking |
| clavicul/o | clavicle; collarbone |
| coagul/o | clotting |
| coccyg/o | coccyx; tailbone |
| cochle/o | cochlea |
| col/o | colon |
| colon/o | colon |
| colp/o | vagina |
| coni/o | dust |
| conjunctiv/o | conjunctiva |
| contra- | against; opposite |
| cor/o | heart |
| corne/o | cornea |
| coron/o | heart |
| cortic/o | cortex |
| cost/o | rib |
| crani/o | cranium; skull |
| -crine | to secrete |
| -crit | to separate |
| cry/o | cold |
| crypt/o | hidden |
| -cusia | hearing |
| -cusis | hearing |
| cut/o | skin |
| cutane/o | skin |
| cyan/o | blue; bluish |
| cyst/o | bladder; sac; urinary bladder |
| cyt/o | cell |
| -cytosis | conditon of cells |
| dacry/o | tears |
| dacryocyst/o | tear sac |
| dendr/o | branching |
| dermat/o | skin |
| dermo/o | skin |
| -desis | binding; fixation |
| dipl/o | two; double |
| dips/o | thirst |
| dors/o | back |
| duoden/o | duodenum |
| dura- | hard |
| -dynia | pain |
| dys- | abnormal; painful; difficult |
| echo- | sound |
| ect- | outside; out |
| -ectasis | stretching; dilation |
| -ectomy | surgical removal; excision |
| electro/o | electricty |
| embry/o | embryo |
| -emesis | vomiting |
| -emia | blood condition |
| en- | within; in; inward |
| encephal/o | brain |
| endo- | within; inner |
| endocrin/o | endocrine |
| enter/o | intestines |
| eosin/o | rosy red; rosy |
| epi- | above |
| epididym/o | epididymis |
| epiglott/o | epiglottis |
| epis/o | vulva |
| eso- | within; in; inward |
| esophag/o | esophagus |
| eu- | same |
| ex- | out; outward |
| fasci/o | fascia; fibrous tissue |
| femor/o | femur; thighbone |
| fet/o; fet/I | fetus |
| fibr/o | fiber; fibrous tissue |
| fibul/o | fibula; outer lower leg bone |
| fund/o | fundus |
| gastr/o | stomach |
| -gen | producing; forming |
| -genesis | producing; forming |
| -genic | producing; forming |
| gingiv/o | gums |
| glauc/o | silver; gray |
| gli/o | neuroglia; nerve cell |
| -globin | protein |
| -globulin | protein |
| glomerul/o | glomerulus |
| gloss/o | tongue |
| gluc/o | glucose; sugar; sweet |
| glyc/o | glucose; sugar; sweet |
| gonad/o | sex glands |
| -gram | record; picture; x-ray film |
| granul/o | granules |
| -graph | instrument for recording |
| -graphy | process of recording |
| gravid/o | pregnancy |
| gyn/o | woman |
| gynec/o | woman |
| hem/o | blood |
| hemat/o | blood |
| hemi- | half |
| hepat/o | liver |
| hidr/o | sweat |
| hist/o | tissue |
| humer/o | humerus; upper arm bone |
| hydr/o | water; fluid |
| hyper- | above; excessive |
| hypo- | deficeint; below |
| hyster/o | uterus |
| -ia | condition; abnormal condition |
| -iac | pertaining to |
| -ic | pertaining to |
| ile/o | ileum |
| ili/o | ilium; pelvic bone |
| immun/o | protection |
| infra- | below; inferior |
| inguin/o | groin |
| inter- | between |
| intra- | within |
| ir/o | iris |
| irid/o | iris |
| is/o | equal |
| ischi/o | ischium; pelvic bone |
| iso- | same; equal |
| -itis | inflammation |
| jejun/o | jejunum |
| kal/i | potassium |
| kary/o | nucleus |
| kerat/o | cornea; horny tissue; hard |
| ket/o | ketone bodies |
| -kinesia | movement |
| kyph/o | humpback |
| labyrinth/o | inner ear; labyrinth |
| lacrim/o | tears |
| lact/o | milk |
| lamin/o | lamina; thin flat plate or layer |
| lapar/o | abdominal wall |
| laryng/o | larynx |
| later/o | side; away from the midline |
| leiomy/o | smooth muscle |
| leuk/o | white |
| ligament/o | ligament |
| lingu/o | tongue |
| lip/o | fat |
| lip/o | fat |
| lith/o | stone |
| lord/o | swayback |
| lumb/o | lower back; loin |
| lymph/o | lymph |
| lymphaden/o | lymph gland |
| lymphangi/o | lymph vessel |
| -lysis | destruction; breakdown |
| -lytic | destruction; breakdown |
| macro- | large |
| mal- | bad; poor; abnormal |
| -malacia | softening |
| mamm/o | breast |
| mandibul/o | mandible; lower jawbone |
| mast/o | breast |
| maxill/o | maxilla; upper jawbone |
| meat/o | meatus; opening |
| medi/o | middle |
| megaly | enlarged; enlargement |
| melan/o | black |
| men/o | menses; menstruation |
| mening/o | meninges |
| meta- | change; after; beyond |
| metacarp/o | hand bones |
| metatars/o | foot bones |
| -meter | instrument ot measure |
| metr/I; metr/o | uterus |
| -metry | measuring; to measure |
| micro- | small |
| mono- | one |
| morph/o | form; shape |
| muc/o | mucus |
| multi- | many |
| my/o | muscle |
| myc/o | fungus |
| myctal/o | night |
| myel/o | bone marrrow; spinal cord |
| myring/o | eardrum |
| nas/o | nose |
| nat/o | birth |
| natr/o | sodium |
| neo- | new |
| nephr/o | kidney |
| neur/o | nerve |
| noct/o | night |
| non- | not |
| nucle/o | nucleus |
| nulli- | none |
| ocul/o | eye |
| -oid | like; resembling |
| olig/o | few; diminished |
| -oma | tumor |
| onych/o | nail |
| oophor/o | ovary |
| ophthalm/o | eye |
| -opia | vision |
| opt/o | vision; eye |
| or/o | mouth |
| orch/o | testis; testicle |
| orchi/o | testis; testicle |
| orchid/o | testis |
| orth/o | straight |
| -osis | condition; abnormal condition |
| oste/o | bone |
| ot/o | ear |
| -ous | pertaining to |
| ovari/o | ovary |
| ox/i | oxygen |
| oxy- | sharp; quick |
| pachy/o | thick |
| palpebr/o | eyelid |
| pan- | all |
| pancreat/o | pancreas |
| par/o | bear; give birth to; labor; childbirth |
| para- | beside; around |
| -paresis | partial paralysis |
| part/o | bear |
| patell/o | patella; kneecap |
| -pathy | disease; illness |
| pector/o | chest |
| pelv/i | pelvis |
| -penia | deficiency; decreased number |
| -pepsia | digestion |
| per- | through |
| peri- | around; surrounding |
| perine/o | perineum |
| peritone/o | peritoneum |
| -pexy | surgical fixation |
| phac/o | lens |
| -phagia | eating; swallowing |
| phalang/o | finger and toe bones |
| pharyng/o | pharynx |
| -philia | attraction to |
| phleb/o | vein |
| -phobia | abnormal fear |
| -phonia | sound; voice |
| -phoresis | carrying; transmission |
| -phoria | feeling; mental state |
| phot/o | light |
| phren/o | diaphragm |
| pil/o | hair |
| -plasty | surgical repair |
| -plegia | paralysis |
| pleur/o | pleura |
| Plural of a | ae |
| Plural of en | ina |
| Plural of ex or ix | ices |
| Plural of ies | ietes |
| Plural of is | es or ides |
| Plural of nx | nges |
| Plural of on | a |
| Plural of um | a |
| Plural of us | i |
| -pnea | breathing |
| pneum/o | lung; air |
| -poiesis | formation; production of |
| poikil/o | varied; irregular |
| poly- | many; excessive |
| polyp/o | polyp |
| post- | after |
| poster/o | back |
| pre- | before; in front of |
| presby- | old |
| primi- | first; one |
| proct/o | rectum |
| prostat/o | prostate gland |
| proxim/o | near |
| -ptosis | drooping; sagging |
| -ptysis | spitting up |
| pub/i | pubis |
| pub/o | pubis; pelvic bone |
| puerper/o | childbirth |
| pulmon/o | lungs |
| pupill/o | pupil |
| py/o | pus |
| pyel/o | renal pelvis |
| quadr/I | four |
| radi/o | radius; outer lower arm bone |
| rect/o | rectum |
| ren/o | kidney |
| retin/o | retina |
| retro- | backard; behind; upward |
| rhabdomy/o | skeletal muscle; striated muscle |
| rhin/o | nose |
| rhytid/o | wrinkles |
| salping/o | fallopian tubes; oviducts |
| sarc/o | flesh |
| scapula/o | scapula; shoulder blade |
| scler/o | hard; sclera |
| -sclerosis | hardening |
| scoli/o | crooked; bent |
| -scope | instrument for viewing |
| -scopy | visualization with a scope |
| seb/o | sebum |
| semi- | half |
| semin/i | semen |
| sial/o | salivary gland; saliva |
| sigmoid/o | sigmoid colon |
| sinus/o | sinus |
| somat/o | body |
| -somnia | sleep |
| -spasm | contraction; twitching |
| sperm/o | sperm; spermatic cord |
| spermat/o | sperm; spermatic cord |
| spher/o | sphere; round |
| sphygm/o | pulse |
| spin/o | spine |
| spir/o | breathe |
| splen/o | spleen |
| spondyl/o | vertebra; vertebral column |
| squam/o | scale |
| staped/o | stapes; middle ear bone |
| -stasis | control; stop; stopping or controlling |
| -stenosis | narrowing |
| stern/o | sternum; breastbone |
| steth/o | chest |
| stomat/o | mouth |
| sub- | under; below; beneath |
| sud/o | sweat |
| sudor/o | sweat |
| super- | above; over; excess |
| supra- | above; on top of |
| sym- | with; association |
| syn- | together; with; union |
| tachy- | fast |
| tars/o | ankle bones |
| ten/o | tendon |
| tend/o | tendon |
| tendin/o | tendon |
| tenosynov/o | tendon sheath |
| test/o | testis; testicle |
| testicul/o | testis |
| thec/o | sheath |
| -therapy | treatment |
| thorac/o | chest |
| -thorax | chest; pleural cavity |
| thromb/o | clot |
| thym/o | thymus gland |
| thyr/o | thyroid gland |
| thyroid/o | thyroid gland |
| -tocia | labor; birth |
| -tome | cutting instrument |
| -tonia | muscle tone |
| tonsill/o | tonsils |
| toxic/o | poison |
| trache/o | trachea |
| -tresia | opening |
| tri- | three |
| trich/o | hair |
| -tripsy | crushing |
| -trophy | growth; development |
| -tropia | to turn; turning |
| -tropin | stimulating effect of a hormone |
| -tropion | to turn; turning |
| tympan/o | eardrum |
| umbilic/o | navel |
| ungu/o | nail |
| uni- | one |
| ur/o | urine; urinary system |
| ureter/o | ureter |
| urethr/o | urethra |
| -uria | urine; urination |
| uter/o | uterus |
| uve/o | uvea |
| vagin/o | vagina |
| vas/o | vessel; vas deferens |
| ven/o | vein |
| ventr/o | front side; belly |
| ventricul/o | ventricle |
| -version | to turn |
| vertebr/o | vertebra |
| vesic/o | urinary bladder |
| viscer/o | internal organs |
| vitre/o | glassy; jelly-like |
| vulv/o | vulva |
| xanth/o | yellow |
| xer/o | dry |