n 1 a  :  the contents of the stomach of an unweaned animal and esp. 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 .
 
 
 
Similar sounding terms:  round 
 
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