Lal-lā'tion, n.

n. [Fr. lallation, It. lallazione, from Lat. lallare, to sing lalla, or lullaby, L. Lat., to chatter, allied to Gr. λαλεῖν, to chatter, babble, and Ger. lallen, to speak imperfectly.] An imperfect pronunciation of the letter r, in which it sounds like l.