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Prefixes
Medical Terminology
| Term | Definition |
|---|---|
| a- | without, not, no |
| ab- | away from |
| ad- | toward |
| ambi- | both |
| an- | not, without |
| ante- | before |
| anti- | against |
| auto- | self |
| bi- | two |
| bio- | life |
| brady- | slow |
| chlor- | green |
| circum- | around |
| cirrh- | yellow |
| con- | together |
| contra- | against |
| cyan- | blue |
| dia- | completely |
| dys- | bad, painful, abnormal |
| ec- | out of |
| ecto- | out, outside |
| endo- | within, inner |
| epi- | upon, above |
| eryth- | red |
| eu- | good, normal |
| ex-, exo- | out, away from |
| extra- | outside |
| hemi- | half |
| hyper- | over, above |
| hypo- | below, under |
| im- | not, without |
| immun- | having immunity |
| in- | not, without |
| infra- | below, under |
| inter- | between, among |
| intra- | within, inside |
| iso- | equal |
| leuk- | white |
| macro- | large |
| mal- | poor |
| medi- | middle |
| melan- | black |
| meso- | middle |
| meta- | after, beyond |
| micro- | small |
| mid- | middle |
| mono- | one |
| multi- | many |
| neo- | new |
| pan- | all |
| para- | near, alongside, abnormal |
| per- | through |
| peri- | around |
| poly- | many, excessive |
| post- | after |
| pre- | before |
| pro- | to go forth |
| pseudo- | false |
| purpur- | purple |
| quadri- | four |
| re- | again |
| retro- | behind, backward |
| rube- | red |
| semi- | half |
| sub- | below, under |
| super- | above, excess |
| supra | above |
| sym-, syn- | together |
| tachy- | fast |
| trans- | across |
| tri- | three |
| ultra | beyond, excessive |
| uni- | one |
| xanth- | yellow |
| xer- | dry |