labial

‖n.; pl. Labipalpi [ NL. See Labium, and Palpus. ] (Zool.) One of the labial palpi of an insect. See Illust. under Labium. [ 1913 Webster ]

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 &oomacr_; (f&oomacr_;d), ō (ōld), etc., and as eu and u in French, and ö, ü in German. See Guide to Pronunciation, §§ 11, 178. [ 1913 Webster ]

4. (Zool.) Of or pertaining to the labium; as, the labial palpi of insects. See Labium. [ 1913 Webster ]

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 ]

n. (Phonetics) The quality of being labial; as, the labialism of an articulation; conversion into a labial, as of a sound which is different in another language. J. Peile. [ 1913 Webster ]

n. (Phonetics) The modification of an articulation by contraction of the lip opening. [ 1913 Webster ]

v. t. (Phonetics) To modify by contraction of the lip opening. [ 1913 Webster ]