lambdacism Meaning, Definition & Usage

  1. noun speech defect involving excessive use or unusual pronunciation of the phoneme `l'

WordNet

Lamb"da*cism noun
Etymology
L. lambdacismus, Gr. , fr. la`mbda the letter lambda (Λ).
Definitions
  1. A fault in speaking or in composition, which consists in too frequent use of the letter l, or in doubling it erroneously.
  2. A defect in pronunciation of the letter l when doubled, which consists in giving it a sound as if followed by y, similar to that of the letters lli in billion.
  3. The use of the sound of l for that of r in pronunciation; lallation; as, Amelican for American.

Webster 1913