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.

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 orifice is an opening or a hole, most often in the body. Your mouth is an orifice through which you eat and speak, and your nostrils are orifices through which you breathe.

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

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

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 …

Nov 26, 2025 · An orifice is a natural opening or aperture within the body. In anatomy, it refers specifically to a passage that allows communication between an internal cavity and the external …

Orifice definition: An opening, especially to a cavity or passage of the body; a mouth or vent.

Jan 14, 2026 · Noun orifice (plural orifices) A mouth or aperture, such as of a tube, pipe, etc.; an opening.

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