also  di*es*trum  or chiefly Brit  di*oes*trus  also  di*oes*trum  n :  a period of sexual quiescence that intervenes between two periods of estrus di*es*trous also  di*es*tru*al  or chiefly Brit  di*oes*trous  also  di*oes*tru*al  adj 
 
 
 
Similar sounding terms:  dioestrous  dis·tress 
 
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