Unit 12 Prefixes

Prefix Meaning
a–
an–
not
ante– in front of; before
brady– slow
con– together, with
contra– against, opposite
di– separate, apart, double, two
dys– bad
ec– out, off, from, beyond
ecto– outside
endo– inside
epi– on top of
eu– good, well–
extra– outside, more, beyond
hyper– too much
hypo– too little
in– not
inter– between
intra– inside
macro– large
meso– in the middle
micro– small
mono– one
neo– new
ob– in front of; against
oligo– several; a handful
par–
para–
beside; near
peri– around
poly– many; too much
post– behind (anatomically or in time)
pre– in front of (anatomically or in time)
pro– in front of; in favor of
pseudo– false, lying
trans– through

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