'Labial' definitions:

Definition of 'labial'

From: WordNet
adjective
Of or relating to the lips of the mouth; "labial stops"
adjective
Relating to or near the female labium
noun
A consonant whose articulation involves movement of the lips [syn: labial consonant, labial]

Definition of 'Labial'

From: GCIDE
  • Labial \La"bi*al\, a. [LL. labialis, fr. L. labium lip: cf. F. labial. See Lip.]
  • 1. Of or pertaining to the lips or labia; as, labial veins. [1913 Webster]
  • 2. (Mus.) Furnished with lips; as, a labial organ pipe. [1913 Webster]
  • 3. (Phonetics) (a) Articulated, as a consonant, mainly by the lips, as b, p, m, w. (b) Modified, as a vowel, by contraction of the lip opening, as [=oo] (f[=oo]d), [=o] ([=o]ld), etc., and as eu and u in French, and ["o], ["u] in German. See Guide to Pronunciation, [sect][sect] 11, 178. [1913 Webster]
  • 4. (Zool.) Of or pertaining to the labium; as, the labial palpi of insects. See Labium. [1913 Webster]

Definition of 'Labial'

From: GCIDE
  • Labial \La"bi*al\, n.
  • 1. (Phonetics) A letter or character representing an articulation or sound formed or uttered chiefly with the lips, as b, p, w. [1913 Webster]
  • 2. (Mus.) An organ pipe that is furnished with lips; a flue pipe. [1913 Webster]
  • 3. (Zool.) One of the scales which border the mouth of a fish or reptile. [1913 Webster]