American Heritage® Dictionary of the English Language, Fourth Edition
- n. An opening, especially to a cavity or passage of the body; a mouth or vent.
Century Dictionary and Cyclopedia
- n. An opening; a mouth or aperture, as of a tube, pipe, or other similar object; a perforation; a vent.
- n. See the adjectives.
GNU Webster's 1913
- n. A mouth or aperture, as of a tube, pipe, etc.; an opening
- n. an aperture or hole that opens into a bodily cavity
- Middle English, from Old French, from Late Latin orificium ("an opening, literally the making of a mouth"), compound of os ("mouth") + facere ("to make") (Wiktionary)
- Middle English, from Old French, from Late Latin ōrificium : Latin ōs, ōr-, mouth; + Latin -ficium, a making, doing (from facere, to make). (American Heritage® Dictionary of the English Language, Fourth Edition)
“Whenever I say the word orifice, I feel like a mix between a 13 yo boy and Beavis and Butthead - Say it with me - She said orifice, huh huh, orifice; yeah, orifice.”
“If Mitch McConnell ever stopped short James Inhofes head would disappear into a certain orifice.”
“An irregular section of the wall (nothing was ever square, flat, vertical or exactly smooth around here) disappeared up and back rather like the cover of a rolltop desk, and as if the orifice were a comic mouth thrusting out a broad tongue, a kind of board slid outward.”
“The difference in B.t. u. in a pound of steam at the boiler pressure and after passing the orifice is the heat available for evaporating the moisture content and superheating the steam.”
“The opening of the external acoustic meatus is exposed by drawing the tragus forward; at the orifice are a few short crisp hairs which serve to prevent the entrance of dust or of small insects; beyond this the secretion of the ceruminous glands serves to catch any small particles which may find their way into the meatus.”
“It is a projecting knob, like a bung closing an orifice, which is believed to conceal a cavern where the redoubtable captain placed a few barrels of his wealth.”
“The auricles communicate with the ventricles each by a large aperture, the auriculo-ventricular orifice, which is furnished with a remarkable mechanism of valves, allowing the transmission of blood from the auricles into the ventricles, but preventing a reverse course.”
“My notes contain memoranda of various galleries crammed with pieces of leaves right up to the orifice, which is on a level with the ground, and entirely devoid of cells, even of an unfinished one.”
“When the store has been taken in, this accessory orifice, which is used only during the last few moments, is closed with a mouthful of mortar, thrust outward from within.”
“Enlightened by these observations and informed of the shape, the number and the arrangement of the eggs, I searched the galleries of the Anthophoræ for those which the Sitares had laid there and invariably found them gathered in a heap inside the galleries, at a distance of an inch or two from the orifice, which is always open to the outer world.”
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