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Definition of Rectal (adjective)

Rectal (adjective): Having to do with the rectum, the last 6 to 8 inches of the large intestine that serves to store solid waste until it leaves the body through the anus.

The word "rectal" comes from the Latin "rectus" meaning "straight" (which the human rectum is not).

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=5251
Last Editorial Review: 6/14/2012

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