Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun orifice

1 sense of orifice

Sense 1
orifice, opening, porta -- (an aperture or hole that opens into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart")
       => passage, passageway -- (a path or channel or duct through or along which something may pass; "the nasal passages")