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Medical Prefixes

Common prefixes of many medical terms

PrefixMeaning
uni- one
bi- two
hemi- half
pan- all
poly- many, much
a-, an- none
hyper- excessive, above
hypo- deficient, under
ultra- beyond, excess
in- into, not
ex- out, away from
en-, endo- in, within
ec-, ecto- out, outside
ab- away from
ad- toward
ante- before, forward
post- after, behind
pre- before, in front of
sub- under, beneath
epi- upon, on or above
infra- beneath
supra- above, upper
inter- between
intra- within, into
para- near, beside, abnormal
peri- surrounding
re- back, again
retro- behind, backward
syn-, sym- together, with
per- through
trans- through, across
dia- through, complete
ana- up, apart
cata- down
micro- small
macro-, mega- large
rube- red
cirrh/o yellow
leuk/o white
melan/o black
psuedo- false
meta- change, beyond
eu- good, normal
mal- bad
dys- bad, painful, difficult, abnormal
anti- against
con- with, together
contra- against, opposite
de- down, lack of
brady- slow
tachy- fast
auto- self
par- other than, apart from
neo- new
bi/o life
Created by: fountainhead
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