Definition of gulch noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ɡʌltʃ//
; NAmE NAmE//ɡʌltʃ//
(especially North American English) Mountains and valleys
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a narrow valley with steep sides, that was formed by a fast stream flowing through it See related entries: Mountains and valleys Word Originmid 19th cent.: perhaps from dialect gulch ‘to swallow’.
See the Oxford Advanced American Dictionary entry: gulch