ˈleɪbjəl adj. & n. --adj. 1 a of
the lips. b Zool.
of, like, or
serving as a
lip, a liplike
part, or a
labium. 2 Dentistry designating the
surface of a
tooth adjacent to the lips. 3 Phonet. (of a sound) requiring
partial or
complete closure of the lips (e.g. p, b, f, v, m, w;
and vowels in
which lips are rounded, e.g. oo in m oon). --n. Phonet. a labial
sound. ølabial
pipe Mus. an organ-pipe having lips; a flue-pipe. øølabialism n. labialize v.tr. (also -ise). labially adv. [med.L labialis f. L
labia lips]