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Meaning of labialism

la•bi•al•ism

Pronunciation: (lā'bē-u-liz"um), [key]
— n.
  1. a tendency, sometimes habitual, to make sounds labial, as in pronouncing the l in love as a w-like sound.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.