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defective speech with use of labial sounds.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A form of stammering in which there is confusion in the use of the labial consonants.
Farlex Partner Medical Dictionary © Farlex 2012
labialism(lā′bē-ăl-ĭzm) [ labial + -ism]
A kind of stammering in which sounds made by the lips are prominent.
Medical Dictionary, © 2009 Farlex and Partners