1
- chiefly Anatomy of or relating to the lips【主剖】（有关）唇的。
1.1
- Dentistry (of the surface of a tooth) adjacent to the lips【牙科】（牙齿表面）紧邻嘴唇的。
1.2
- Zoology of, resembling, or serving as a lip, lip-like part, or labium【动】唇的; 唇状的; 用作唇的。
2
- Phonetics (of a consonant) requiring partial or complete closure of the lips (e.g. p, b, f, v, m, w), or (of a vowel) requiring rounded lips (e.g. oo in moon)【语音】（辅音发音时）嘴唇半闭合（或完全闭合）的, 唇音的（如p, b, f, v, m, w）; （元音）圆唇的（如moon中的oo）。
- Phonetics a labial sound【语音】唇音。
派生词
labialize
（亦作-ise）verb （限义项2）labially
adverb词源
late 16th cent.: from medieval Latin labialis, from Latin labium 'lip'.