De*bouch" (?), v. i. [imp. & p. p. Debouched (?); p. pr. & vb. n. Debouching.] [F. déboucher; pref. dé- (L. dis- or de) + boucher to stop up, fr. bouche mouth, fr. L. bucca the cheek. Cf. Disembogue.]
To march out from a wood, defile, or other confined spot, into open ground; to issue.
Battalions debouching on the plain.
Prescott.
© Webster 1913
De*bouch" (?), v. i. (Geog.)
To issue; -- said of a stream passing from a gorge out into an open valley or a plain.
© Webster 1913