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MED 121
PREFIX
| Term | Definition |
|---|---|
| ENDO, INTRA | in, within |
| EPI | above, upon |
| HYPO | under, below: deficient |
| INFRA, SUB | under, below |
| INTER | between |
| RETRO | backward, behind |
| BI | two |
| DI, DIPL, DIPLO | double |
| HEMI, SEMI | one/half |
| HYPER | excessive, above normal |
| MACRO | large |
| MICRO | small |
| MONO, UNI | one |
| MULTI, POLY | many, much |
| QUADRI | four |
| TRI | three |
| AB | from, away from |
| AD | toward |
| CIRCUM, PERI | around |
| DIA, TRANS | through, across |
| ECTO, EXO, EXTRA | outside, outward |
| PARA | near, beside; beyond |
| SUPER | upper, above |
| SUPRA | above; excessive; superior |
| ULTRA | excess, beyond |
| A, AN | without, not |
| ANTI, CONTRA | against |
| AUTO | self, own |
| BRADY | slow |
| DYS | bad; painful; difficult |
| EU | good, normal |
| HETERO | different |
| HOMO, HOMEO | same |
| TACHY | rapid |
| POST | after, behind |
| PRE, PRO | before, in front of |
| PRIMI | first |
| NULLI | none |
| PSEUDO | false |
| MAL | bad |
| SYN | union, together, joined |
| PREFIXES OF POSITION | a place and location |
| PREFIXES OF NUMBER/MEASUREMENT | an amount, size or degree of involvement |
| PREFIXES OF DIRECTION | a pathway or route |
| OTHER COMMON PREFIXES | change the meaning of a word |