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Common Prefixes
| Term | Definition |
|---|---|
| a-, an- | without |
| ante-, pre-,pro- | before |
| anti-, contra- | against |
| bi-, diplo- | two |
| brady- | slow |
| circum- | around |
| de- | away from |
| dia-, trans- | through |
| dys- | abnormal, painful, difficult |
| ecto- | outside |
| endo- | within |
| epi- | upon, over |
| eu- | normal, good |
| ex-, exo-, extra- | outside of, away from, outside |
| hemi-, semi- | half |
| hyper-, poly- | above normal, excessive |
| hypo-, sub- | below normal, below, underneath, inferior |
| inter- | between |
| intra- | within |
| iso- | same |
| mal- | bad, not adequate |
| megalo-, mega-, macro- | large, big |
| micro- | small, tiny |
| mono- | one |
| multi-, pluri- | many |
| oligo- | few, scanty, sparse |
| pan- | all |
| peri- | around |
| post- | after, following |
| quadra-, quadri- | four |
| re- | again, backward |
| super-, supra- | above, superior, more |
| tachy- | fast, abnormally fast |
| ultra- | beyond |
| uni- | one, single |