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Medical Prefixes
Common prefixes of many medical terms
| Prefix | Meaning |
|---|---|
| uni- | one |
| bi- | two |
| hemi- | half |
| pan- | all |
| poly- | many, much |
| a-, an- | none |
| hyper- | excessive, above |
| hypo- | deficient, under |
| ultra- | beyond, excess |
| in- | into, not |
| ex- | out, away from |
| en-, endo- | in, within |
| ec-, ecto- | out, outside |
| ab- | away from |
| ad- | toward |
| ante- | before, forward |
| post- | after, behind |
| pre- | before, in front of |
| sub- | under, beneath |
| epi- | upon, on or above |
| infra- | beneath |
| supra- | above, upper |
| inter- | between |
| intra- | within, into |
| para- | near, beside, abnormal |
| peri- | surrounding |
| re- | back, again |
| retro- | behind, backward |
| syn-, sym- | together, with |
| per- | through |
| trans- | through, across |
| dia- | through, complete |
| ana- | up, apart |
| cata- | down |
| micro- | small |
| macro-, mega- | large |
| rube- | red |
| cirrh/o | yellow |
| leuk/o | white |
| melan/o | black |
| psuedo- | false |
| meta- | change, beyond |
| eu- | good, normal |
| mal- | bad |
| dys- | bad, painful, difficult, abnormal |
| anti- | against |
| con- | with, together |
| contra- | against, opposite |
| de- | down, lack of |
| brady- | slow |
| tachy- | fast |
| auto- | self |
| par- | other than, apart from |
| neo- | new |
| bi/o | life |