World English Dictionary
tenesmus (tɪˈnɛzməs, -ˈnɛs-)
pathol an ineffective painful straining to empty the bowels in response to the sensation of a desire to defecate, without producing a significant quantity of faeces
[C16: from Medieval Latin, from Latin tēnesmos, from Greek teinesmos, from teinein to strain]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

tenesmic te·nes·mic (tə-něz'mĭk)
Relating to, marked by, or affected with tenesmus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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