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orb living
ortho straight,direct
osm smell
osmo pushing
osteo bone
oto ear
ov,ovi egg
oxy oxygen
quad,quadr four-sided
re back,again
rect straight
ren kidney
retin,retic net,network
retro backward,behind
rheum watery flow,change
rhin,rhino nose
ruga fold,wrinkle
ob before,against
oculo eye
odonto teeth
olfact smell
oligo few
onco a mass
oo egg
ophthalmo eye
Created by: CHUCKD