orifice 1noundomain: body partPrinceton WordNet [ver.3.1]EnglishDefinitionan aperture or hole that opens into a bodily cavityReport errorPath to highest hypernymMorphologySynset graphExamples1.the orifice into the aorta from the lower left chamber of the heartSynonymsopening 9an aperture or hole that opens into a bodily cavityporta 1an aperture or hole that opens into a bodily cavity