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Root, Suffix, Prefix
Common Medical Term Root Words, Suffixes, and Prefixes
| Term | Definition |
|---|---|
| cardi/o | heart |
| derm/o | skin |
| enter/o | small intestines |
| bucc/o | cheek |
| lumb/o | loin (lower part of the back) |
| myc/o | fungus, mushroom |
| viv/o | life |
| adip/o, lip/o, steat/o | fat |
| arteri/o | artery |
| arthr/o | joint |
| axill/o | armpit |
| blephar/o | eyelid |
| cephal/o | head |
| cerebr/o, encephal/o | cerebrum, brain |
| cervic/o | neck |
| cholecyst/o | gallbladder |
| col/o | large intestine |
| cost/o | rib |
| crani/o | skull |
| cyst/o | urinary bladder |
| cyt/o | cell |
| derm/o, dermat/o, cutane/o | skin |
| esophag/o | esophagus |
| gastr/o | stomach |
| hem/o, hemat/o | blood |
| hepat/o | liver |
| lapar/o | abdominal wall |
| laryng/o | larynx, voice box |
| myel/o | spinal cord |
| my/o, muscul/o | muscle |
| nas/o, rhin/o | nose |
| neur/o | nerve |
| ophthalm/o, ocul/o | eye |
| or/o, stomat/o | mouth |
| oste/o | bone |
| ot/o | ear |
| pancreat/o | pancreas |
| pharyng/o | throat |
| pneum/o, pneumon/o, pulmon/o | lung |
| ren/o, nephr/o | kidneys |
| splen/o | spleen |
| thorac/o | chest |
| thyroid/o | thyroid gland |
| trache/o | windpipe, trachea |
| ven/o, phleb/o | vein |
| vertebr/o | vertebra |
| cyan/o | blue |
| erythr/o | red |
| leuk/o | white |
| melan/o | black |
| poli/o | gray |
| phren/o | diaphragm |
| appendic/o | appendix |
| rect/o, proct/o | rectum |
| -ac, -al, -ar, -ary, -eal, -ia, -iac, -ic, -ical, -ose, -ous, -tic | pertaining to |
| -algia | pain |
| -centesis | surgical puncture to remove fluid |
| -cide | to kill or destroy |
| -cyte | cell |
| -ectomy | surgical removal of |
| -emia | blood; blood condition |
| -gram | written record |
| -graph | an instrument used to record |
| -graphy | process of recording |
| -ia | condition, especially an abnormal state |
| -ion | condition |
| -ism | condition |
| -itis | inflammation of |
| -lithiasis | presence of or formation of stones |
| -logy | study of |
| -megaly | enlargement |
| -oid | resembling |
| -oma | tumor |
| -osis | abnormal condition or disease |
| -otomy | surgical incision |
| -pathy | disease |
| -plasty | surgical or plastic repair |
| -plegia | paralysis |
| -pnea | breathing, respiration |
| -rrhaphy | surgical suturing |
| -rrhea | draining, flow, discharge, |
| -rrhexis | rupture |
| -scope | instrument used to look |
| -scopy | examination using a scope, process of looking |
| -sis | action, process, state, condition |
| -stasis | stoppage, controlling, standing |
| -stomy | surgically create an artificial opening (mouth or stoma) |
| a-, an- | without, not, absence of |
| anti- | against |
| auto- | self |
| bi- | two, double |
| brady- | slow |
| dys- | bad, difficult, painful, abnormal |
| epi- | over, above, upon |
| eu- | good, normal |
| hemi- | half |
| hyper- | above, excessive |
| hypo- | less than, under |
| inter- | between |
| intra- | within |
| multi- | many |
| non- | not |
| peri- | around, surrounding |
| poly- | many, much |
| post- | after, behind |
| pre- | before, in front |
| pseudo- | false |
| quadri- | four |
| semi- | half |
| sub- | under, below |
| supra- | above, over |
| tachy- | fast, rapid |
| tri- | three |
| endo- | inside |
| ecto- | outside |
| vascul/o, vas/o, angi/o | blood vessel |
| -meter | instrument used to measure |
| -metry | process of measuring |
| re- | again |
| contra- | against |
| pro- | before, on behalf of |
| de- | down, away from |
| ante- | before |
| gen/o | creation, cause |
| hydr/o | water |
| morph/o | change |
| myc/o | fungus |
| necro | death |
| orth/o | straight |
| path/o | suffering, disease |
| phag/o | eat |
| plas/o | formation |
| py/o | pus |
| scler/o | hard |
| sten/o | narrowing |
| troph/o | nourishment, development |
| xen/o | foreign |
| -icle, -ole, -ule, -ula | small, diminutive suffixes |
| -ia, -ism | condition |
| -ium | tissue, structure |
| -y | condition, procedure |
| -tomy | a cutting procedure |
| tom/o | to cut |
| -ectomy | a cutting out procedure or surgical removal |
| ec- | out |
| -ist | specialist |
| -iatrist | specialist in medicine of |
| -iatrics | medical science |
| -logist | specialist in the study of |
| -logy | study of |
| de- | down, away from |
| ante-, pre- | before |
| pro- | before, on behalf of |
| ab- | away |
| ad- | towards |
| circum-, peri- | around |
| dia-, trans- | through |
| e-, ec,-, ex- | out |
| ecto-, exo-, extra- | outside |
| en-, endo-, intra- | in, inside |
| epi- | upon |
| sub- | beneath |
| inter- | between |
| oligo- | few |
| pan- | all |
| micro- | small |
| macro- | large |
| mono- | one |
| hemi-, semi- | half |
| con-, syn-, sym- | with, together |