1. (a.) Of or pertaining to the lips or labia; as, labial veins.
2. (a.) Furnished with lips; as, a labial organ pipe.
3. (a.) Articulated, as a consonant, mainly by the lips, as b, p, m, w.
4. (a.) Modified, as a vowel, by contraction of the lip opening, as / (f/d), / (/ld), etc., and as eu and u in French, and o, u in German. See Guide to Pronunciation, // 11, 178.
5. (a.) of or pertaining to the labium; as, the labial palpi of insects. See Labium.
6. (n.) A letter or character representing an articulation or sound formed or uttered chiefly with the lips, as b, p, w.
7. (n.) An organ pipe that is furnished with lips; a flue pipe.
8. (n.) One of the scales which border the mouth of a fish or reptile.
Thesaurus Entries
accented, allophone, alveolar, apical, apico-alveolar, apico-dental, articulated, articulation, aspiration, assimilated, assimilation, back, barytone, bilabial, broad, cacuminal, central, cerebral, check, checked, close, consonant, consonantal, continuant, dental, diphthong, dissimilated, dissimilation, dorsal, epenthetic vowel, explosive, flat, front, glide, glossal, glottal, glottalization, guttural, hard, heavy, high, intonated, labialization, labiate, labiodental, labiovelar, laryngeal, lateral, lax, light, lingual, lipped, liquid, low, manner of articulation, mid, modification, monophthong, monophthongal, morphophoneme, mute, muted, narrow, nasal, nasalized, occlusive, open, oxytone, palatal, palatalized, parasitic vowel, peak, pharyngeal, pharyngealization, pharyngealized, phone, phoneme, phonemic, phonetic, phonic, pitch, pitched, plosive, posttonic, prothetic vowel, retroflex, rounded, segmental phoneme, semivowel, soft, sonant, sonority, speech sound, stop, stopped, stressed, strong, surd, syllabic, syllabic nucleus, syllabic peak, syllable, tense, thick, throaty, tonal, tonic, transition sound, triphthong, twangy, unaccented, unrounded, unstressed, velar, vocable, vocalic, vocoid, voice, voiced, voiced sound, voiceless, voiceless sound, voicing, vowel, vowellike, weak, wide
