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Prefixes
Medical Terminology: Common Prefixes
| Prefix | Meaning |
|---|---|
| a | without or away from |
| ab | away from |
| an | without |
| ante | before or in front of |
| anti | against |
| ad | toward |
| bi | two |
| brady | slow |
| cyan | blue |
| contra | against |
| di | two |
| dys | pain |
| epi | over or upon |
| erythr | red |
| endo | inner or within |
| hemi | half |
| hypo | below |
| hyper | above or over |
| intra | within, inside |
| inter | among |
| leuk | white |
| multi | many |
| mal | ill or bad |
| micro | small |
| macro | large |
| mid | middle |
| neo | new |
| nulli | none |
| per | through |
| peri | around |
| pro | before |
| pseudo | false |
| pre | before |
| post | after |
| poly | many |
| quad | four |
| re | again |
| retro | behind |
| supra | above |
| syn | together |
| sub | below |
| super | above |
| semi | partial |
| tri | three |
| tachy | rapid or fast |
| ultra | excess |
| uni | one |