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Medical Terminology
Medical Terminology Prefixes
| Term | Definition |
|---|---|
| a/an- | without or absence of |
| ab- | away/from |
| add- | toward |
| anti- | against |
| bi- | two |
| bin- | twice or double |
| brady- | slow |
| contra- | against |
| de- | from, down from; lack |
| dia- | through, complete |
| dis- | to undo; free from |
| dys- | abnormal |
| ecto- | outside, outer |
| eu- | normal/good |
| ex- | out of, from |
| exo- | exterior, eternal, or outward |
| extra- | beyond, outside of |
| chole- | bile |
| dent-/dont- | teeth |
| hemi- | right or left half |
| hyper- | above, excessive |
| hypo- | below, incomplete |
| in- | in |
| infra- | below, beneath, inferior to |
| inter- | between |
| intra- | inside, within |
| endo- | within, inner |
| epi- | on, upon, ever |
| eso- | inward |
| micro- | small |
| multi- | many |
| neo- | new |
| para- | beside, around |
| peri- | surrounding |
| poly- | many |
| post- | after |
| pre-/pro- | before |
| re/retro- | back, behind |
| semi | top or bottom half |
| sept- | bacteria |
| sub- | under/below |
| super- | over/above |
| sym/syn | together/joined |
| mal- | bad |
| macro- | large |
| meso- | middle |
| tetra/quad- | four |
| trans- | through |
| tri- | three |
| ultra- | beyond |
| uni- | one |