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Prefixes: Med. Term.
Medical Terminology from Greek and Latin Roots. Prefixes. (GREEK in all caps)
| Prefix | Definition |
|---|---|
| A-, AN- (4) | not, deficient, absence of |
| ab- (1) | away from |
| ACRO- (8) | the extremities |
| ad- (2) | to, toward, near |
| ambi- (3) | both |
| AMPHI-, AMPHO- (9) | on both sides, around, both |
| ANA- (9) | up, back, again |
| ante- (1) | before, in front of (in time or place) |
| ANTI- (7) | against, opposing |
| APO- (7) | from, away from, off |
| AUTO- (8) | self |
| CATA- (9) | down, downward, completely |
| circum- (3) | around, enveloping |
| co-, con- (1) | with, together; very, thoroughly |
| contra- (1) | opposite, against |
| de- (3) | down, away from, absent |
| DIA- (7) | through, across; completely; apart |
| dis- (2) | away, apart from , removed |
| DYS- (4) | painful, difficult, defective, abnormal |
| e-, ex- (2) | out of, away from |
| ECTO- (7) | outside of |
| EN- (7) | in, into, within |
| ENDO-, ENTO- (7) | within |
| EPI- (7) | on, upon, above |
| ESO- (7) | within |
| EU- (8) | well, good, normal |
| EX-, EC- (7) | out of, away from |
| EXO- (7) | outside, outward |
| extra-, extro- (3) | on the outside of, beyond, not relating to |
| HEMI- (8) | half |
| HYPER- (4) | over, excessive, above, beyond normal |
| HYPO- (4) | under, deficient, below normal |
| in- (1) | in, into; not; very, completely |
| infra- (1) | beneath, below |
| inter- (1) | between |
| intra- (3) | within |
| juxta- (1) | near, next to |
| META- (9) | change, after, next |
| PARA- (8) | beside, around; abnormal, disordered; beyond |
| per- (1) | through; very, completely |
| PERI- (7, does not elide) | around, surrounding |
| post- (2) | after, behind |
| pre- (2) | before, in front of (in space or time) |
| pro- (3) | before, in front of, forward; precursor |
| PRO- (9) | before, in front of |
| re- (1) | back, again |
| retro- (1) | backward, in back, behind |
| sub- (2) | under, below |
| supra-, super- (1) | over, above |
| SYN- (7) | with, together |
| trans- (3) | across, through |
| ultra- (2) | beyond, excess |
| MONO-, uni- | one |
| DI-, bi- | two |
| TRI-, tri- | three |
| TETRA-, quadra- | four |
| PENT-, PENTA- | five |
| HEX-, HEXA- | six |
| HEPT-, HEPTA- | seven |
| OCT-, OCTA- | eight |
| NON-, NONA- | nine |
| DECA- | ten |