rectum

2 ENTRIES FOUND:

rec·tum

noun \ˈrek-təm\

medical : the end of the tube in your body that helps digest food : the last part of the large intestine

plural rectums or rec·ta \-tə\

Full Definition of RECTUM

:  the terminal part of the intestine from the sigmoid colon to the anus

Origin of RECTUM

Middle English, from Medieval Latin, from rectum intestinum, literally, straight intestine
First Known Use: 15th century

rec·tum

noun \ˈrek-təm\   (Medical Dictionary)
plural rectums or rec·ta \-tə\

Medical Definition of RECTUM

: the terminal part of the intestine from the sigmoid colon to the anus

Illustration of RECTUM

rectum

noun    (Concise Encyclopedia)

End segment of the large intestine (see digestion) in which feces accumulate just prior to discharge. It is 5–6 in. (13–15 cm) long and lined with mucous membrane. One set of muscles separates it from the anal canal; another shortens it to expel feces. The rectal walls distend as feces enter, which stimulates the urge for defecation.

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