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Definition of orifice

orifice

/ˈɔːr.ɪ.fɪs/
or · i · fice
Plural:orifices
•
Adjective:orificial
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orifice Lexical Profile

orifice Game Scores & Validity

• noun

1

A natural external or internal opening in an animal body, such as the mouth, a nostril, or a pore, through which substances pass.

Example

"The veterinarian examined the horse's nasal orifice to check for any signs of blockage or inflammation."

2

An opening, hole, or vent in a pipe, plate, or mechanical device through which fluid, gas, or light flows.

Example

"Engineers calibrated the brass orifice at the end of the pipeline to regulate the water pressure."

Synonyms
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Antonyms
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• Rhymes for orifice

• Nearby Words

orientation
oriented
orienteering
orifice
origami
origanum
origin

Word Origin & Etymology

Borrowed in the 16th century from Middle French 'orifice', from Late Latin 'orificium', a compound of Latin 'os' (genitive 'oris', meaning 'mouth') and 'facere' (meaning 'to make').

Cite this Entry

Wordmom. (2026). Definition of Orifice. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/orifice
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