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Direct/Posit Prefix
Medical Terminology
| Term | Definition |
|---|---|
| Ab-, Abs- | Away from |
| Ad- | Towards |
| Ante- | Before; Forward |
| Circum- | Around |
| Cycl- | Circle; Cycle |
| De- | Away from; Ending |
| Dia- | Across; Through |
| Ect/o-, Exo- | Outer; Outside |
| End/o-, Ent-, Enter/o- | Within; Inner |
| Epi- | Upon; Outside of |
| Ex-, Extra- | Beyond |
| Infra- | Beneath; Below |
| Inter- | Between |
| Intra- | Within |
| Meso- | Middle |
| Meta- | Beyond; Change |
| Para- | Alongside; Abnormal |
| Path/o- | Disease |
| Peri- | Around |
| Post- | Behind; After |
| Pre- | Before; In front |
| Retro- | Backward; Behind |
| Sub- | Under |
| Super- | Above |
| Supra- | Above; Upon |
| Sy-, Syl-, Sym-, Syn-, Sys- | Together |
| Trans- | Across; Through |