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[awr-uh-fis, or-] /ˈɔr ə fɪs, ˈɒr-/

an opening or aperture, as of a tube or pipe; a mouthlike opening or hole; mouth; vent.
(mainly Technical) an opening or mouth into a cavity; vent; aperture

early 15c., from Middle French orifice “the opening of a wound” (14c.) and directly from Latin orificium “an opening,” literally “mouth-making,” from os (genitive oris) “mouth” (see oral) + facere “make” (see factitious). Related: Orificial.

orifice or·i·fice (ôr’ə-fĭs)
An opening, especially to a cavity or passage of the body; a mouth or vent.
or’i·fi’cial (-fĭsh’əl) adj.


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