Found 2 items, similar to orifice.
English → English (WordNet) Definition: orifice orifice n : an aperture or hole opening into a bodily cavity; “the orifice into the aorta from the lower left chamber of the heart” [syn: opening, porta]
English → English (gcide) Definition: Orifice 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. --Shak. [1913 Webster] Etna was bored through the top with a monstrous orifice. --Addison. [1913 Webster]