[ 'leɪbɪəl ]
■ adjective
1》 chiefly Anatomy & Biology relating to the lips or a labium.
2》 Phonetics (of a consonant) requiring partial or complete closure of the lips (e.g. p or w ), or (of a vowel) requiring rounded lips (e.g. oo ).
Derivatives
~ize or ~ise verb
~ly adverb
Origin
C16: from med. L. ~is , from L. labium 'lip'.