Metaglossary.com - Definitions for "{term}"

Keywords: defile, valley, march, confined, gorge

To march out from a wood, defile, or other confined spot, into open ground; to issue.

To issue; -- said of a stream passing from a gorge out into an open valley or a plain.

march out (as from a defile) into open ground; "The regiments debouched from the valley"

Keywords: tributary, emerge, river, big, pass

pass out or emerge; especially of rivers; "The tributary debouched into the big river"