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Prefixes
Medical terminology
| Term | Definition |
|---|---|
| a- an- | without, not |
| bi- | two |
| anti- | against |
| ad- | towards |
| ab- | away from |
| allo- | other |
| ana- | against, up |
| ante- | before, in front |
| auto- | self |
| brachy- | short |
| brady- | slow |
| cine- | movement |
| circum- peri- | around |
| contra- | against, opposite |
| de- | cessation |
| di- | double |
| dia- | across, through |
| diplo- | double |
| dys- | bad, painful |
| ec- | out |
| ecto- | outside, outward |
| en- | in, within |
| endo- | in, within |
| epi- | above, upon |
| eso- | inward |
| eu- | good, normal |
| ex- | out, out from |
| exo- | outside, outward |
| extra- | outside |
| hemi- | half |
| hetero- | different |
| homo- | same, alike |
| hypo- | under, below, deficient |
| hyper- | excessive, above normal |
| im- | not |
| infra- | below, under |
| inter- | between |
| intra- | within, in |
| marco- | large |
| medi- | middle |
| mega- | enlargement |
| meta- | change, beyond |
| micro- | small |
| mono- | one |
| multi- | many |
| neo- | new |
| nulli- | none |
| pan- | all |
| para- | near, beside, beyond |
| per- | through |
| pre- pro- | before, in front of |
| primi- | first |
| pseudo- | false |
| poly- | many |
| post- | after, behind |
| quadri- | four |
| retro- | behind, backward |
| semi- | half |
| supra- | above, excessive, superior |
| sym- syn- | union, together, joined |
| tachy- | fast |
| trans- | across, through |
| ultra- | excess, beyond |
| uni- | one |