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Prefix, root, suffix
| Term | Definition |
|---|---|
| a-, an- | without, not, lack of |
| ab- | away from |
| ad- | to, toward, near |
| ante- | before, forward, in front of |
| anti- | against |
| auto- | self |
| bi- | double, two (2), twice |
| brady- | slow |
| circum- | around |
| contra- | against, opposite |
| cyan- | blue |
| de- | down, from |
| dia- | across, through, apart |
| dis- | apart, free from |
| dys- | bad, difficult, abnormal, painful |
| ecto- | outer, outside |
| en- | in, into, within |
| endo- | inner, inside |
| epi- | over, on, upon |
| erythro- | red |
| eu- | normal, good, well, healthy |
| ex- | out, out of, from, away from |
| hemi- | half |
| hyper- | excessive, too much, high |
| hypo- | under, decreased, less than normal |
| in- | in, into, within, not |
| inter- | between |
| intra- | within |
| intro- | into, within |
| leuko- | white |
| macro- | large |
| mal- | bad, illness, disease |
| meg- | large |
| micro- | small |
| mono- | one (1), single |
| neo- | new |
| non- | not |
| olig- | small, scant |
| para- | beside, beyond, after |
| per- | by, through |
| peri- | around |
| poly- | many, much |
| post- | after, behind |
| pre- | before, in front of, prior to |
| pro- | before, in front of |
| re- | again, backward |
| retro- | backward, behind |
| semi- | half |
| sub- | under, beneath |
| super- | above, over, excess |
| supra- | above, over |
| tachy- | fast, rapid |
| trans- | across |
| uni- | one (1) |
| abdomin (o) | abdomen |
| aden (o) | gland |
| adren (o) | adrenal gland |
| angi (o) | vessel |
| arteri (o) | artery |
| arthr (o) | joint |
| bronch (o) | bronchus, bronchi |
| card, cardi (o) | heart |
| cephal (o) | head |
| chole, chol (o) | bile |
| chondr (o) | cartilage |
| colo | colon, large intestine |
| cost (o) | rib |
| crani (o) | skull |
| cyst (o) | bladder, cyst |
| cyt (o) | cell |
| dent (o) | tooth |
| derma | skin |
| duoden (o) | duodenum |
| electr (o) | electricity |
| encephal (o) | brain |
| enter | intestines |
| fibr (o) | fiber, fibrous |
| gastr (o) | stomach |
| gloss (o) | tongue |
| gluc (o) | sweetness, glucose |
| glyc (o) | sugar |
| gyn, gyne, gyneco | women |
| hem, hema, hemo, hemat (o) | blood |
| hepat (o) | liver |
| hydr (o) | water |
| hyster (o) | uterus |
| ile (o), ili (o) | ileum |
| laparo | abdomen, loin, flank |
| laryng (o) | larynx |
| lith (o) | stone |
| mamm (o) | breast, mammary gland |
| mast (o) | mammary gland, breast |
| meno | menstruation |
| my (o) | muscle |
| myel (o) | spinal cord, bone marrow |
| necro | death |
| nephr (o) | kidney |
| neur (o) | nerve |
| ocul (o) | eye |
| oophor (o) | ovary |
| ophthalm (o) | eye |
| orth (o) | straight, normal, correct |
| oste (o) | bone |
| ot (o) | ear |
| ped (o) | child, foot |
| pharyng (o) | pharynx |
| phleb (o) | vein |
| pneum (o) | lung, air, gas |
| proct (o) | rectum |
| psych (o) | mind |
| pulmo | lung |
| py (o) | pus |
| rect (o) | rectum |
| rhin (o) | nose |
| salping (o) | eustachian tube, fallopian tube |
| splen (o) | spleen |
| sten (o) | narrow, constriction |
| stern (o) | sternum |
| stomat (o) | mouth |
| therm (o) | heat |
| thoraco | chest |
| thromb (o) | clot, thrombus |
| thyr (o) | thyroid |
| toxic (o) | poison, poisonous |
| toxo | poison |
| trache (o) | trachea |
| urethr (o) | urethra |
| urin (o) | urine |
| uro | urine, urinary tract, urination |
| uter (o) | uterus |
| vas | blood vessel, vas deferens |
| ven (o) | vein |
| vertebr (o) | spine, vertebrae |
| -algia | pain |
| -asis | condition, usually abnormal |
| -cele | hernia, herniation, pouching |
| -centesis | puncture and aspiration of |
| -cyte | cell |
| -ectasia | dilation, stretching |
| -ectomy | excision, removal of |
| -emia | blood condition |
| -genesis | development, production, creation |
| -genic | producing, causing |
| -gram | record |
| -graph | a diagram, a recording instrument |
| -graphy | making a recording |
| -iasis | condition of |
| -ism | a condition |
| -itis | inflammation |
| -logy | the study of |
| -lysis | destruction of, decomposition |
| -megaly | enlargement |
| -meter | measuring instrument |
| -oma | tumor |
| -osis | condition |
| -pathy | disease |
| -penia | lack, deficiency |
| -phagia | to eat or consume, swallowing |
| -phasia | speaking |
| -phobia | an exaggerated fear |
| -plasty | surgical repair or re-shaping |
| -plegia | paralysis |
| -pnea | breathing, respiration |
| -ptosis | falling, sagging, dropping down |
| -rrhage, rrhagia | excessive flow |
| -rrhaphy | stitching, suturing |
| -rrhea | flow, discharge |
| -scope | examination instrument |
| -scopy | examination using a scope |
| -stasis | maintenance, maintaining a constant level |
| -stomy, -ostomy | creation of an opening |
| -tomy, -otomy | incision, cutting into |
| -uria | urine |