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