Labial
Labial , adjective
[Late Latin labialis, from Latin labium lip: compare French labial. See Lip.]
1.
Of or pertaining to the lips or labia; as, labial veins.
2.
(Music) Furnished with lips; as, a labial organ pipe.
3.
(a) (Phonetics) Articulated, as a consonant, mainly by the lips, as b, p, m, w.
(b)
(Phonetics) Modified, as a vowel, by contraction of the lip opening, as o (fod), ō (ōld), etc., and as eu and u in French, and o, u in German. See Guide to Pronunciation, §§ 11, 178.
4.
(Zoology) Of or pertaining to the labium; as, the labial palpi of insects. See Labium.
Labial , noun
1.
(Phonetics) A letter or character representing an articulation or sound formed or uttered chiefly with the lips, as b, p, w.
2.
(Music) An organ pipe that is furnished with lips; a flue pipe.
3.
(Zoology) One of the scales which border the mouth of a fish or reptile.