orifice
/ˈɔɹəfɪs/ noun C2- A mouth or aperture, such as of a tube, pipe, etc.; an opening. · the orifice of an artery or vein; the orifice of a wound; he entered the cave's gaping orifice
- One of the natural external openings of the human or animal body. · the vagina and other orifices
- A stupid or objectionable person.
Plural orifices
From the library
A large stone had served as a wedge; flints and pebbles had been inserted around it, so as to conceal the orifice; this species of masonry had been covered with earth, and grass and weeds had grown there, moss had clung to the stones, myrtle-bushes had taken root, and the old rock seemed fixed to the earth.
He looked around for a chimney from which no smoke issued, and having reached it, he disappeared through the orifice without being seen by anyone.
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