Roots, Prefixes & Suffixes

o/o egg (ovum)
obstetr/o midwife
occlus/o close, obstruct
ocul/o eye
odont/o tooth
-oid pertaining to, resemble [suffix]
-ole small opening [suffix]
olecran/o olecranon (elbow)
olfact/o smell
oligo- few, scant [prefix]
-ologist one who studies [suffix]
-ology study of [suffix]
-oma tumor, mass [suffix]
omphal/o navel
-on that goes [suffix]
onc/o tumor, mass
onych/o nail
oophor/o ovary
ophry/o eyebrow
ophthalm/o eye
-opia vision [suffix]
-opsia vision [suffix]
-opsy viewing [suffix]
opt/o eye, vision
optic/o sight, vision
-or doer, one who [suffix]
or/o mouth
orch/o testicle
orchi/o testis
orchid/o testicle
-orexia appetite [suffix]
organ/o organ
orth/o straight; correct
-ory relating to [suffix]
oscill/o swing
-ose sugar [suffix]
-osis (abnormal) condition [suffix]
oss(eo/i) bone
oste/o bone
-ostomy artificial opening [suffix]
ot/o ear
-otomy cut in [suffix]
-ous pertaining to [suffix]
ov(i/o) egg (ovum)
ovari/o ovary
ox(i/o/y) oxygen

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