Webster's Revised Unabridged Dictionary · 1913

Tenesmus

Tenesmus , noun

[New Latin, from Greek {not transcribed}, from {not transcribed} to stretch: compare Latin tenesmos.]

(Medicine) An urgent and distressing sensation, as if a discharge from the intestines must take place, although none can be effected; -- always referred to the lower extremity of the rectum.
Collocations (1)
Vesical tenesmus , a similar sensation as to the evacuation of urine, referred to the region of the bladder.