noun, plural rec·tums, rec·ta [rek-tuh] /ˈrɛk tə/. Anatomy.
Origin of rectum
Examples from the Web for rectum
Rectum I take to indicate that the instrument was straight and not a curved bistoury.Surgical Instruments in Greek and Roman Times|John Stewart Milne
Rectum, which carries away the solid waste matter from the bowels.The Sex Side of Life|Mary Dennett
Rectum, rek′tum, n. the lowest part of the large intestine:—pl.
"Rectum" followed "exterius" in the written copy, wherein "s. albidus" and "antice sinu excavata" were not to be found.
The Sphincter is two Fingers broad, to open and close the Rectum.The Compleat Surgeon, or the Whole Art of Surgery Explain'd in a Most Familiar Method|Charles Gabriel Le Clerc
British Dictionary definitions for rectum
noun plural -tums or -ta (-tə)
Word Origin for rectum
Word Origin and History for rectum
early 15c., from Latin intestinum rectum "straight intestine," in contrast to the convolution of the rest of the bowels, from neuter past participle of regere "to straighten" (see regal). A loan-translation of Greek apeuthysmeon enteron, "the name given to the lowest part of the large intestine by Galen, who so called it because he dissected only animals whose rectum (in contradistinction to that of man) is really straight" [Klein].