Lambdacism

1. A fault in speaking or in composition, consisting of too frequent use of the letter "l", or 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". This trait is commonly a part of a Japanese accent in English.

Source: Webster's Revised Unabridged Dictionary

Translation of "Lambdacism"

Spanish: Lambdacismo, Hungarian: Lambdacizmus, Russian: Ламбдаизм.