Definitions for: Orifice


[n] an aperture or hole opening into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart"



Webster (1913) Definition: 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.

Etna was bored through the top with a monstrous
orifice. --Addison.

Synonyms: opening, porta

See Also: anus, aortic orifice, arse, arsehole, asshole, blastopore, cardia, cervix, cervix uteri, external orifice, fenestra, fontanel, fontanelle, introitus, mouth, naris, os, passage, passageway, porta hepatis, pylorus, rima, soft spot, spiracle, stoma, urethral orifice, uterine cervix, vent

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