Definitions for: Lallation

[n] gibberish resembling the sounds of a baby
[n] speech defect in which the phoneme `r' is pronounced as `l'

Webster (1913) Definition: Lal*la"tion, n. [L. lallare to sing lalla, or
lullaby: cf. F. lallation.]
An imperfect enunciation of the letter r, in which it sounds
like l.

Synonyms: babble, babbling

See Also: gibber, gibberish, speech defect, speech disorder