— orificial /awr'euh fish"euhl, or'-/ , adj.
/awr"euh fis, or"-/ , n.
an opening or aperture, as of a tube or pipe; a mouthlike opening or hole; mouth; vent.
[ 1535-45; orificium, equiv. to L or- (s. of os ) mouth + -i- -I- + -fic-, comb. form of facere to make, DO 1 (see -FIC) + -ium n. suffix ]