Ŏr'i-fice, n.

(ŏr′ĭ-fĭs), n. [Fr. orifice, Pr. orifici, Sp. & It. orificio, Lat. orificium, from os, oris, a mouth, and facere, to make.] The mouth or aperture of a tube, pipe, or other cavity; an opening; as, the orifice of an artery or vein; the orifice of a wound.

Etna was bored through the top with a monstrous orifice. Addison.