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Medical Terminology
Prefixes
Prefix | Definition |
---|---|
a- | no, not, without, lack of, apart |
ab- | away from |
ad- | toward, near |
ambi- | both, both sides, around, about |
an- | no, not, without, lack of |
ana- | up, apart, backward, again, anew |
ant- | against |
ante- | before, forward |
anti- | against |
apo- | separation |
astro- | star-shaped |
auto- | self |
bi- | two, double |
bin- | twice, two |
brachy- | short |
brady- | slow |
cac- | bad |
centi- | one hundred, one hundredth |
chromo- | color |
circum- | around |
con- | with, together |
contra- | against, opposite |
de- | down, away, from |
deca- | ten |
di- | two, double |
dia-, di(a)- | through, between, complete |
dif- | apart, free from, separate |
di(s)- | two, apart |
dis- | apart |
dys- | bad, difficult, painful, abnormal |
ec- | out, outside, outer |
ecto- | out, outside, outer |
em- | in |
en- | in, within |
end- | within, inner |
endo- | within, inner |
ep- | upon, over, above |
epi- | upon, over, above |
eso- | inward |
eu- | good, normal |
ex- | out, away from |
exo- | out, away from |
extra- | outside, beyond |
hemi- | half |
heter- | different |
hetero- | different |
homeo- | similar, same, likeness, constant |
homo- | similar, same |
hydr- | water |
hydro- | water |
hyp_ | below, deficient |
hyper- | above, beyond, excessive |
hypo- | below, under, deficient |
in- | in, into, not |
infer- | below |
inter- | between |
intra- | within |
ir- | not |
mal- | bad |
mega- | large, great |
meso- | middle |
meta- | beyond, over, between, change |
micro- | small |
milli- | one-thousandth |
mon(o)- | one |
mono- | one |
multi- | many, much |
neo- | new |
nulli- | none |
olig- | little, scanty |
oligo- | little, scanty |
pan- | all |
par- | around, beside |
para- | beside, along side, abnormal |
per- | through |
peri- | around |
poly- | many, much, excessive |
post- | after, behind |
pre- | before, in front of |
primi- | first |
pro- | before, in front of |
proto- | first |
pseudo- | false |
pyro- | fire |
quadri- | four |
re- | back, backward, again |
retro- | backward |
semi- | half |
sub- | below, under, beneath |
supra- | above, beyond, superior |
super- | upper, above |
sym- | together, with |
syn- | together, with |
tachy- | rapid, fast |
trans- | across |
tri- | three |
ultra- | beyond |
un- | back, reversal, not, annulment |
uni- | one |