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medical prefixes
medical dictionary online
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Many terms frequently used in science and medicine
are derived from latin words. By combining the root
words with, prefixes and suffixes many of the meanings
of the terms can be deciphered.
Use the following resources to better understand
medical terms:
Medical Roots or Stems
Prefixes commonly used in medical terms
Suffixes commonly used in medical terms
Glossary of Medical Root Words
| ab(s) |
from |
| ad |
towards |
| an |
without |
| ambi / amphi |
both |
| ana |
up to, move from |
| aniso |
unequal |
| ante |
before, forwards |
| anti |
against, opposite |
| bi |
two |
| bio |
life |
| brachy |
short |
| cata |
down |
| circum |
around |
| con |
together |
| contra |
against |
| cyte |
cell |
| de |
away from |
| di |
two |
| diplo |
double |
| dur |
hard, firm |
| dys |
bad, abnormal |
| e / ec / ecto /ek |
out of |
| em / en / endo |
in, into |
| ent |
within |
| epi |
on |
| eso |
carry |
| eury |
broad |
| ex / exo |
out of |
| extra |
beyond |
| hapto |
bind |
| hemi |
half |
| hept |
seven |
| hetero |
different |
| homo |
same |
| hyper |
in excess, excessive |
| hypo |
below, deficient |
| im / in |
not |
| infra |
below, underneath |
| inter |
among, between |
| intro |
during |
| iso |
equal |
| juxta |
adjacent |
| macro / magno / mega |
large |
| medi / meso |
middle |
| mega / megalo |
large |
| meta |
beyond, between |
| micro |
small |
| neo |
new |
| non |
not |
| ob |
before |
| octa / octo |
eight |
| pachy |
thick |
| para |
beside |
| pent |
five |
| per |
by, through |
| peri |
around |
| pleo |
more than normal or usual |
| poly |
many |
| post |
behind |
| pre |
before |
| pros / prox |
beside |
| pseudo |
false |
| quar |
four |
| re |
back, again |
| retro |
backwards |
| semi |
half |
| sex |
six |
| sept |
seven |
| sub |
under |
| super / supra |
above, over |
| syn / sys |
together |
| tetra |
four |
| trans |
accross |
| uni |
one |
| ultra |
beyond |
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