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orifice (n.)

"an opening, a mouth or aperture," early 15c., from Old French orifice "the opening of a wound" (14c.) and directly from Late Latin orificium "an opening," literally "mouth-making," from Latin os (genitive oris) "mouth" (see oral) + combining form of facere "to make, do" (from PIE root *dhe- "to set, put"). Related: Orificial.

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