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Prefixes Med Terms
Prefixes Medical Terms
| Term | Definition |
|---|---|
| a- | no, not, without, lacking |
| ab- | away from |
| acou- | sound, hear, acoustic |
| ad- | toward |
| ambi- | both |
| ambo- | both |
| amphi- | both sides |
| an- | no, not, without, lacking |
| ana- | apart, up |
| ante- | before |
| anti- | against |
| apo- | separation, derived from |
| auto- | self, same |
| bi- | two |
| bin- | two |
| brachy- | slow |
| brady- | slow |
| cac- | bad, abnormal |
| cata- | down |
| centi- | one hundredth |
| chron- | time |
| cine | movement |
| circum- | around |
| co- | together |
| com- | together, with |
| con- | with, together |
| contra- | against, opposed |
| de- | away from, down |
| deca- | ten |
| deci- | one tenth |
| di- | twice, two |
| dia- | across, through |
| dif- | separate |
| dis- | apart, separate |
| dys- | abnormal, bad, difficult |
| e- | out from, from |
| ec- | out, outside |
| ect(o)- | out of, outside |
| em- | in |
| en- | inside, within |
| end- | within, inner |
| endo- | within, inner |
| ent- | within |
| ep- | above, on, over |
| epi- | above, on, over |
| equi- | equal, same |
| eso- | within |
| eti(o)- | cause |
| eu- | good, normal, well |
| ex- | away from, out |
| exa- | quintillion |
| exo- | outside |
| extra- | outside |
| femto- | one quadrillionth |
| giga- | billion |
| hecto- | hundred |
| hemi- | half (one side) |
| heter(o)- | other, different |
| hex- | six |
| hom(o)- | same, similar |
| homeo- | same, similar |
| im- | not |
| in- | into, not, without |
| infra- | below, beneath |
| inter- | between |
| intra- | within |
| intro- | within |
| iso- | equal, same |
| juxta- | near, close to |
| kilo- | one thousand |
| macro- | large |
| mal- | bad, abnormal |
| mega- | very large, million |
| meso- | middle |
| meta- | alter, beyond, change |
| micro- | small, one millionth |
| milli- | one thousandth |
| mon(o)- | one, single |
| multi- | more than one |
| nano- | one billionth |
| neo- | new |
| non- | not, negative of |
| nulli- | none |
| oligo- | few, scant |
| pachy- | thick |
| pan- | all |
| para- | beside, near |
| per- | though |
| peri- | around |
| peta- | quadrillion |
| pico- | one trillionth |
| poly- | many, much |
| por- | opening, passage through |
| post- | after, behind |
| pre- | before, in front of (time or place) |
| prot(o)- | first |
| pseduo- | fasle |
| quadri- | four |
| quint- | five |
| re- | backward, again |
| retro- | behind, backward |
| semi- | half |
| sept- | seven |
| sub- | below, under |
| super- | above |
| supra- | above |
| sym- | together, with |
| syn- | together, with |
| tachy- | fast, rapid |
| tera- | trillion |
| tetra- | four |
| trans- | across, through |
| tri- | three |
| ultra- | beyond, excessive |
| un- | not, reversal |
| uni- | one |