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Webster 1913 Edition
Lambdacism
Lamb′da-cism
,Noun.
[L.
lambdacismus
, Gr. [GREEK], fr. λάμβδα
the letter lambda (Λ).] 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
.