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Medical Terminology
Prefixes, Suffixes, and Root Words
| Term | Definition |
|---|---|
| a(n) | absence, without |
| ab | away from |
| ad | toward |
| ambi | both sides |
| ante | before, forward |
| anti | against |
| apo | away from |
| aut(o) | self |
| bi | two |
| diplo | double |
| dys | difficult, painful |
| ec | out of |
| end(o) | inward, in, within |
| eu | normal, health |
| ex | outside, on outer layer |
| hetero | other, different |
| hyper | above, beyond |
| hypo | below |
| infra | beneath |
| intra | within, into |
| juxta | near |
| macr(o) | large, long |
| mal | bad, abnormal |
| mega | great, large |
| meta | beyond, change |
| micr(o) | small |
| mono | one |
| morph(o) | shape |
| multi | many |
| olig(o) | few, little |
| par(a) | near, beside, accessory to |
| peri | around |
| pico | one-trillionth |
| poly | much, many |
| post | behind, after |
| pre | before, in front |
| pro | favoring, supporting, in front of |
| pseudo | false |
| re | back, contrary |
| retr(o) | backward |
| semi | half |
| sub | under |
| super | above |
| supra | above, upon |
| tetra | four |
| trans | across, through |
| abdomin(o) | abdomen |
| acou | hearing |
| acr(o) | extremity, peak |
| aden(o) | gland |