labial

labial is an   Adverb

Definition:

[1] Of or pertaining to the lips or labia; as, labial veins.

[2] Furnished with lips; as, a labial organ pipe.

[3] Articulated, as a consonant, mainly by the lips, as b, p, m, w.

[4] Modified, as a vowel, by contraction of the lip opening, as oo (food), o (old), etc., and as eu and u in French, and ö, ü in German. See Guide to Pronunciation,

[5] Of or pertaining to the labium; as, the labial palpi of insects. See Labium.

Synonyms: