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A & P
Medical Terminology Prefixes
| Term | Definition |
|---|---|
| a, an-, ar- | without; lack of |
| ab- | away from |
| ad- | to; toward |
| ambi- | both |
| amphi- | both sides |
| ana- | up; apart |
| ante- | before; in front of; forward |
| anter/o- | in front, before |
| anti- | against |
| anis/o- | unequal, dissimilar |
| auto- | self |
| bi- | two |
| brady- | slow |
| cata- | down |
| circum- | around |
| co, com, con- | together |
| contra- | against; opposite |
| de- | lack of; down; away from |
| dextr/o- | right side |
| di- | two |
| dia- | between; through; complete |
| dipl-, dipl/o- | double, two-fold |
| dors/o- | back |
| dys- | painful; difficult, bad |
| ec-, ex- | out, out from |
| ect/o-, exo-, extra- | outside, outward |
| em, en- | in |
| endo- | within |
| epi- | upon; above |
| eu- | good; normal |
| extra- | outside |
| hemi- | half |
| heter/o- | different |
| hidr/o | sweat |
| homo- | same |
| hydr/o | water |
| hyper- | above; excessive; beyond |
| hypo- | below; deficient; under |
| im, in- | not, in |
| infra- | below; inferior to |
| inter- | between |
| intra- | within |
| is/o | equal |
| later/o | side |
| macro- | large; visible to the naked eye |
| mal- | bad |
| meso-, mid-, medi- | middle |
| meta- | change; beyond, after, over |
| micro- | small; not visible to the naked eye |
| mon/o- | one |
| multi- | many, much |
| neo- | new |
| pachy- | thick |
| pan- | all |
| para- | beside; along side, near |
| per- | through |
| peri- | around; surrounding |
| poly- | many, much |
| post- | after; behind |
| poster/o- | posterior, behind, toward the back |
| pre- | before; in front of |
| primi-0 | first |
| pro- | before |
| pseud/o | false |
| quad, quadri- | four |
| re- | back; again |
| retro- | behind; backward |
| scler/o- | hard |
| semi- | part of; half |
| sinister/o | left side |
| sub- | under; below |
| super- | above; upper, excessive |
| supra- | above; upon |
| sym, syn- | together; with, joined |
| tachy- | fast |
| tetra- | four |
| trans- | across, through |
| tri- | three |
| ultra- | beyond; in excess |
| uni- | one |