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Prefixes
Medical Terminology
Term | Definition |
---|---|
a-, an-, ar- | without |
ab- | away from |
ad- | toward |
alb- | white |
ambi- | both |
ankyl(o)-, ancyl(o)- | crooked |
ante- | before |
anti- | against |
aut(o)- | self |
bi-, bin- | both, two |
brachy- | short |
brady- | slow |
cata- | down, reverse |
chlor(o)- | green |
chromat(o)- | color |
chrom(o)- | color |
circum- | around |
cirrh(o)- | yellow |
co-, con-, com- | together |
contra- | against |
cry(o)-, crym(o)- | cold |
crypt(o)- | concealed |
cyan(o)- | blue |
de- | down, from |
demi- | half |
dextr(o)- | right |
di- | double |
dipl(o)- | double |
dis-, di-, dif- | take apart |
dors(o)- | back |
dys- | painful, abnormal |
ec- | out of |
ect(o)- | outside |
en-, endo-, ento- | inside |
epi- | above |
erythr(o)- | red |
exo- | outside |
extra- | outside, in addition |
fore- | before, front |
gen- | produce |
glauc(o)- | grey |
hemi- | half |
heter(o)- | different |
homeo-, homo- | same |
hydr(o)- | water |
hyper- | excessive |
hypo- | deficient |
idio- | self, separate |
im- | not |
in- | into, not |
infra- | beneath |
inter- | between |
intra- | inside |
iso- | same |
later(o)- | to the side |
lept(o)- | slender |
leuc(o)-, leuk(o)- | white |
macr(o)- | large |
mal- | bad, abnormal |
mega-, megalo- | large |
melan(o)- | black |
mes(o)- | middle |
meta- | change, exchange |
micro- | small |
mon(o)- | one |
neo- | new |
nulli- | none |
olig(o)- | small, insufficient |
orth(o)- | straight |
ox(o)- | oxygen |
pachy- | thick |
pan- | all |
para-, par- | near, apart from |
peri- | around |
pleo-, pleio- | more |
polio- | grey matter |
poly- | many |
post- | behind, after |
pre- | before |
prim- | first |
pro- | in front of |
proto- | first |
pseud(o)- | false |
quadr(i)- | four |
retro- | backward |
semi- | half |
sinistr(o)- | left side |
sub-, sup- | below, under |
super- | excessive |
supra- | above |
sym-, syn- | together |
tachy(o)- | rapid |
tetra- | four |
trans- | across |
tri- | three |
ultra- | excess, beyond |