From The Collaborative International Dictionary of English v.0.48:

Orifice \Or"i*fice\, n. [F., from L. orificium; os, oris, a
   mouth + facere to make. See Oral, and Fact.]
   A mouth or aperture, as of a tube, pipe, etc.; an opening;
   as, the orifice of an artery or vein; the orifice of a wound.
   [1913 Webster]

         Etna was bored through the top with a monstrous
         orifice.                                 --Addison.
   [1913 Webster] Oriflamb
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