- a straining to urinate or defecate, without the ability to do so.
- 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
n.1520s, from Latin tenesmos, from Greek tenesmos “straining,” from teinein “to stretch” (see tenet). n.
- A painful spasm of the anal sphincter accompanied by an urgent desire to evacuate the bowel or bladder and involuntary straining that results in the passing of little or no matter.