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Prefixes
Word parts that come at the beginning of words
| Term | Definition |
|---|---|
| a,an-,ar- | without; lack of |
| ab- | away from |
| ad- | to; toward |
| ambi- | both |
| amphi- | both sides |
| ana- | up; apart |
| ante- | before; in front of; forward |
| anter/o- | in front, before |
| anti- | against |
| anis/o- | unequal, dissimilar |
| auto- | self |
| bi- | two |
| brady- | slow |
| cata- | down |
| circum- | around |
| co,com, con- | together |
| contra- | againt; opposite |
| de- | lack of; down; away from |
| dextr/o | right side |
| di- | two |
| dia- | between; through; complete |
| dipl-, dipl/o | double two-fold |
| dors/o- | back |
| dys- | painful; difficult, bad |
| ec- ex- | out, out from |
| ect/o, exo-, extra- | outside, outward |
| em,en- | in |
| endo- | within |
| epi- | upon; above |
| eu- | good; normal |
| extra- | outside |
| hemi- | half |
| heter/o- | different |
| hidr/o- | sweat |
| homo- | same |
| hydr/o | water |
| hyper- | above; excessive; beyond |
| hypo- | below; deficient; under |
| im, in- | not, in |
| infra- | below; inferior to |
| inter- | between |
| intra- | within |
| is/o- | equal |