Dictionary
bi•la•bi•al
Pronunciation: (bī-lā'bē-ul), [key] Phonet.
—
adj.
produced with the lips close together or touching: the lips touch at one phase of the production of the bilabial consonants
p, b, and
m; they do not for the bilabial
w.
—
n.
a bilabial speech sound.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.