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Medical Terms Prefix
Medical Terms Prefixes (From Emergency Care and Transportation of the Sick and )
| Term | Definition |
|---|---|
| a-, an- | without, lack of |
| ab- | away from |
| abdomi(n)- | abdomen |
| acr(o)- | extremity |
| ad- | to, toward |
| aden(o)- | gland |
| ana- | up, back, again |
| angio- | vessel |
| ante- | before, foreward |
| anti- | against, opposed to |
| arteri(o)- | artery |
| arthro- | joint |
| auto- | self |
| bi- | two |
| bi(o)- | life |
| blast(o)- | germ or cell |
| blephar(o)- | eyelid |
| brady- | slow |
| calc- | stone; heel |
| cardi(o)- | heart |
| cephal(o)- | head |
| cerebr(o)- | cerebrum |
| cervic(o)- | neck; cervix |
| chole- | bile |
| chondr(o)- | cartilage |
| circum- | around, about |
| contra- | against, opposite |
| cost(o)- | rib |
| cyan(o)- | blue |
| cyst(o)- | bladder; any fluid-containing sac |
| cyt(o)- | cell |
| de- | down from |
| dermat(o)- | skin |
| di- | twice, double |
| dia- | through, completely |
| dys- | difficult, painful, abnormal |
| ect(o)- | out from |
| electro- | pertaining to electricity |
| end(o)- | within |
| enter(o)- | intestines |
| epi- | upon, on |
| erythr(o)- | red; erythrocytes (red blood cells) |
| eu- | easy, good, normal |
| ex(o)- | outside |
| extra- | outside; in addition |
| gastr(o)- | stomach |
| glyc(o)- | sugar |
| gynec(0)- | females; female reproductive organs |
| hemat(o)- | blood |
| hemi- | half |
| hemo- | blood |
| hepat(o)- | liver |
| hom- | same or like |
| hydr(o)- | water |
| hyper- | over, excessive |
| hypo- | under, deficient |
| hyster(o)- | pertaining to the uterus |
| infra- | below |
| inter- | between |
| intra- | within |
| iso- | equal |
| latera- | side |
| leuk(o)- | pertaining to anything white or to leukocytes (white blood cells) |
| lith(o)- | pertaining to a stone |
| macro- | large |
| mal- | bad or abnormal |
| medi- | middle |
| mega- | large |
| mening(o)- | pertaining to a membrane, particularly the meninges |
| micro- | small |
| mono- | one |
| myel(o)- | pertaining to the spinal cord, the bone marrow, or myelin |
| my(o)- | pertaining to muscle |
| nas(o)- | pertaining to the nose |
| ne(o)- | new |
| nephr(o)- | pertaining to the kidney |
| neur(o)- | pertaining to a nerve or the nervous system |
| noel- | night |
| olig(o)- | little, deficient |
| oophor(o)- | pertaining to the ovary |
| ophthalm(o)- | pertaining to the eye |
| orchid(o)- | pertaining to the testicles |
| orchi(o)- | pertaining to the testicles |
| ortho- | straight or normal |
| oste(o)- | pertaining to bone |
| ot(o)- | pertaining to the ear |
| para- | by the side of |
| path(o)- | pertaining to disease |
| per- | through |
| peri- | around |
| phag(o)- | pertaining to eating, ingesting, or engulfing |
| pharyng(o)- | pertaining to the throat, or pharynx |
| phleb(o)- | pertaining to a vein |
| pneum(o)- | pertaining to respiration, the lungs, or air |
| poly- | many |
| post- | after, behind |
| pre- | before |
| pro- | before, in front of |
| proct(o)- | pertaining to the rectum |
| pseud(o)- | false |
| psych(o)- | pertaining to the mind |
| pulm(o)- | pertaining to the lung |
| pyel(o)- | pertaining to the kidney or pelvis |
| py(o)- | pertaining to pus |
| quadr(i)- | four |
| retr(o)- | backward or behind |
| rhin(o)- | pertaining to the nose |
| salping(o)- | pertaining to a tube |
| scler(o)- | hard; also means pertaining to the sclera |
| semi- | half or partial |
| sub- | under, moderately |
| super- | above, excessive, or more than normal |
| supra- | above |
| !achy- | fast |
| thorac(o)- | pertaining to the chest |
| trans- | across |
| tri- | three |
| uni- | one |
| vas(o)- | vessel |