Definitions for orificeˈɔr ə fɪs, ˈɒr-
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Random House Webster's College Dictionary
or•i•ficeˈɔr ə fɪs, ˈɒr-(n.)
an opening or aperture, as of a tube or pipe; a mouthlike opening or hole; mouth; vent.
Origin of orifice:
1535–45; < MF < L ōrificium=ōr- (s. of ōs) mouth +-fic-, comb. form of facere to make, do1
or`i•fi′cial-ˈfɪʃ əl(adj.)
Princeton's WordNet
orifice, opening, porta(noun)
an aperture or hole that opens into a bodily cavity
"the orifice into the aorta from the lower left chamber of the heart"
Wiktionary
orifice(Noun)
A mouth or aperture, as of a tube, pipe, etc.; an opening; as,
Origin: Middle English, from Old French, from Late Latin orificium, compound of os + facere
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