n.
Pronunciation: ' re-n ə t
Function: noun
Etymology: Middle English, from Middle English *rennen to cause to coagulate, from Old English gerennan, from ge- together + *rennan to cause to run; akin to Old High German rennen to cause to run, Old English rinnan to run ― more at CO- , RUN
Date: 15th century
1 a : the contents of the stomach of an unweaned animal and especially a calf b : the lining membrane of a stomach or one of its compartments (as the fourth of a ruminant) used for curdling milk also : a preparation of the stomach of animals used for this purpose
2 a : RENNIN b : a substitute for rennin