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Medical Terminology
Prefixes
| Term | Definition |
|---|---|
| a- ay | not |
| an- an | not |
| anti- AN-tee | against |
| contra- KON-trah | against |
| de- dee | down, away from |
| ante- AN-tee | before |
| pre- pree | before |
| pro- proh | before, on behalf of |
| brady- BRAH-dih BRAY-dih | slow |
| tachy- TAH-kih | fast |
| post- pohst | after |
| re- ree | again |
| ab- ab | away |
| ad- ad | toward |
| circum- SIR-kum | around |
| peri- PER-ee | around |
| dia- DAI-ah | through |
| trans- tranz | through |
| e- Eh | out |
| ec- ek | out |
| ex- eks | out |
| ecto- EK-toh | outside |
| exo- EK-soh | outside |
| extra- EKS-trah | outside |
| en- en | in, inside |
| endo- EN-doh | in, inside |
| intra- IN-trah | in, inside |
| epi- EH-pee | upon |
| sub- Sub | beneath |
| inter- IN-ter | between |
| bi- bai | two |
| hemi- HEH-mee | half |
| semi- SEH-mee | half |
| hyper- HAI-per | over |
| hypo- HAI-poh | under |
| macro- MAH-kroh | large |
| micro- MAI-kroh | small |
| mono- MAW-noh | one |
| uni- YOO-nih | one |
| oligo- AW-lih-goh | few |
| pan- pan | all |
| poly- PAW-lee | many |
| multi- MUL-tee | many |
| con- kon | with, together |
| syn- sin | with, together |
| sym- sim | with, together |
| dys- dis | bad |
| eu- yoo | good |