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Medical Prefixes
Medical Prefixes (CW104)
| Word Part | Meaning | Example |
|---|---|---|
| acu- | sharp, abrupt, sudden | acupuncture, acute |
| a-, ad- | towards | adsorbent, adsternal |
| a-, an- | without | anesthesia, apathy, anemia |
| ab- | from, away, from | abaxial, abnormal, abscess |
| allo- | other, another | allopathy, AlloDerm |
| ana- | up to, back, again, apart | anaplastic, anabolic |
| ante- | before, forwards | antecubital, ante-cibum |
| auto- | self | antitoxin, antiseptic, antidepressant |
| anti- | against, opposite | autoimmune |
| bi- | twice, double | biceps, bisulfite |
| brady- | slow | bradycardia, bradytaxia |
| cata- | down | catabolism |
| circum- | around | circumoral, circumcision |
| con- | together | congestion, concurrent |
| contra- | against | contraindication |
| cuti- | skin | cuticle |
| de- | from, away from, down from | decongestant |
| deci- | ten | decimal |
| di-, dis- | two | distillation, dissect |
| dia- | through, complete | dialysis, diarrhea |
| dipl-, diplo- | double | diplococcic, diplopia |
| dis- | separation | distended |
| dur- | hard, firm | durable |
| dys- | bad, abnormal | dystrophy, dyspepsia |
| e-, ec-, ecto- | out, from out of | ectopic |
| en-, endo- | into | endarteritis, endometriosis |
| epi- | on, up, against, high | epidermis, epidural |
| eu- | well, normal, abundant | eupnea, euphoria |
| ex-, exo- | out, from out of | exotropia, excision |
| extra- | outside, beyond, in addition | extraoral, extrahepatic |
| hemi- | half | hemiplegia |
| hetero- | different | heterophilic |
| homo- | same | homeopathy, homogenous |
| hyper- | above, excessive | hyperalimentation, hypertension |
| hypo- | below, deficient | hypodermic, hypovolemic |
| im-, in- | not | impotence, inaccurate |
| in- | into | invasive |
| infra- | below, underneath | infracardiac |
| inter- | among, between | intercostal |
| intra- | among, between | intravenous, intrauterine |
| iso- | equal, same | isomorphic, isotonic |
| macro- | large | macrocytic, macrophage |
| mal- | bad | mal-micro, malnutrition, malaise |
| mega- | large | megavitamin |
| megalo- | large | megalomania |
| meta- | change, between | metastasize, metacarpal |
| micro- | small | micron, microscope |
| mono- | one | mononucleosis, monocyte |
| neo- | new | antineoplastic, neonate |
| non- | not | nontoxic, nonsteroidal |
| pan- | all, across, throughout | pandemic, panacea |
| para- | beside, to the side of, wrong | paranasal, parasympathetic |
| per- | by, through, throughout | percutaneous |
| peri- | around | pericardium |
| poly- | many | polymorphonuclear, polypharmacy |
| post- | behind, after | postpartum, postoperative |
| pre- | before, in front | prenatal, premature infant |
| primi- | first | primigravida |
| pro- | before, in front | proptosis |
| pros- | besides, in addition | prosthesis |
| psuedo- | false | psuedoplegia |
| quadri- | four | quadriplegia |
| re-, red- | back, again | reconstitute, reduce |
| retro- | backwards, behind | retrovirus, retrocardiac |
| semi- | half | semiconscious |
| sub- | under, beneath | subcutaneous |
| super- | above, in addition, over excessive | supersensitive |
| supra- | above, on upper side, excessive | suprarenal |
| syn- | together, with | syndrome |
| tachy- | rapid | tachypnea |
| tetra- | four | tetracycline |
| trans- | across, beyond, through | transocular, transfusion |
| tri- | three | triceps, tricyclic |
| ultra- | beyond, excess, more | ultrasound, ultrasensitivity |
| uni- | one | unicellular |