The meaning of ORIFICE is an opening (such as a vent, mouth, or hole) through which something may pass. How to use orifice in a sentence.

An orifice is any opening, mouth, hole or vent, as in a pipe, a plate, or a body.

ORIFICE definition: 1. an opening or hole, especially one in the body, such as the mouth: 2. an opening or hole…. Learn more.

An orifice is an opening or a hole, most often in the body, such as your mouth or your nostril.

ORIFICE definition: an opening or aperture, as of a tube or pipe; a mouthlike opening or hole; mouth; vent. See examples of orifice used in a sentence.

An opening, especially to a cavity or passage of the body; a mouth or vent. [Middle English, from Old French, from Late Latin ōrificium : Latin ōs, ōr-, mouth; see ōs- in Indo-European roots + Latin …

Definition of orifice noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

orifice, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

An orifice is an opening or hole, especially one in the body such as a nostril or the opening of a blood vessel. It can also refer to any opening or aperture in various scientific and engineering contexts, for …

Dec 14, 2025 · orifice (plural orifices) A mouth or aperture, such as of a tube, pipe, etc.; an opening. quotations the orifice of an artery or vein; the orifice of a wound; the vagina and other orifices