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Prefixes
Medical Terminology
| Term | Definition |
|---|---|
| Ab | away from midline |
| Acu | needle |
| Anti | against |
| Auto | self |
| Bi | two, both, double |
| Dys | abnormal, bad, painful, difficult |
| Hemi | half |
| Hetero | opposite, different |
| Homo | same, similar |
| Hyster | uterus |
| Men | menstruation |
| Quadri | four |
| Re | back, again |
| Super | above, beyond |
| Tri | three |
| A-, An- | without, none |
| Ad | toward/near midline |
| Acro | extremities |
| Ambi | on both sides |
| Bio | life |
| Brady | slow |
| Circum | around, encircling |
| Contra | against |
| Endo | within |
| Epi | upon, over, above |
| Ex | out, out of |
| Hyper | excessive, above, too much, over, beyond |
| Hypo | less than, under, below, deficient |
| Hydro | fluid, water |
| Inter | between |
| Intra | within |
| Iso | equal |
| Mal | ill, bad |
| Meta | after, beyond, change |
| Multi | many, more than one |
| Neo | new or abnormal |
| Poly | many much |
| Post | after, behind |
| Pro | before, in front of, forward |
| Retro | behind, backward |
| Sub | under, below, beneath |
| Supra | above, on the top side |
| Tachy | fast |
| Trans | across, over |