Rennet

n. 1 curdled milk found in the stomach of an unweaned calf. 2 preparation made from the stomachmembrane of a calf or from certain fungi, used in making cheese etc. [probably Old English: related to RUN] renounce ?rinaunsi o. (cing)1 consent formally to abandon (a claim, right, etc.). 2 repudiate; refuse to recognize any longer. 3 decline further association or disclaim relationship with. [Latin nuntio announce]