• (n.) 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.
A form of stammering in which there is confusion in the use of the labial consonants. ... (05 Mar 2000) ... 
(la´be-әl-iz″әm) defective speech with use of labial sounds.
La'bi·al·ism noun (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. 
Type: Term Pronunciation: lā′bē-ăl-izm Definitions: 1. A form of stammering in which there is confusion in the use of the labial consonants.