egressive

Adjective

 * 1) Going or directed outward.
 * 2)  Uttered by pushing air out through the mouth or nose.
 * 3)  descriptive of a place or channel through which something such as water or lava leaves an area.
 * This ancient wash was an egressive channel that once drained a lake.

Noun

 * 1)  A speech sound in which the air stream is created by pushing air out through the mouth or nose.