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



BrE BrE//ˈrektəm//
; NAmE NAmE//ˈrektəm//
(pl. rectums, recta
BrE BrE//ˈrektə//
; NAmE NAmE//ˈrektə//
(anatomy) Internal anatomy
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the end section of the tube where food waste collects before leaving the body through the anus See related entries: Internal anatomy Word Originmid 16th cent.: from Latin rectum (intestinum) ‘straight (intestine)’.
See the Oxford Advanced American Dictionary entry: rectum