Found:

lateral

PHONOLOGY/PHONETICS: a feature which characterizes sounds that are produced by raising the mid section of the tongue preventing the air from flowing outward through the center of the mouth, while allowing it to pass over one or both sides of the tongue. EXAMPLE: [l] as in lie.

LIT.	Chomsky, N. and M. Halle (1968) Halle, M. & G. Clements (1983)