orifice

n (fml 文) outer opening in the body, etc （身体等的）外孔, 外口: the nasal orifices, ie nostrils 鼻孔 * at the dark orifice of the cave 在黑暗的洞口.

organism, organist, organization, organization, organisation, organizational, organizational, organisational, organize, organize, organise, organized, organised, organizer, organiser, orgasm, orgiastic, orgy, oriel, orient, oriental, orientalist, orientate, orientation, orienteering, origin, original, original sin, originality, originally, originate, originator, oriole, ormolu, ornament, ornamental, ornamentation, ornate, ornately, ornateness, ornithological, ornithologist, ornithology, orotund, orphan,