(of a ruminant animal) further chew partly digested food（动物）反刍think or talk reflectively深思；反复讨论
柯林斯高阶英汉双解学习词典释义
PHRASE
(牛或羊)咀嚼反刍的食物，倒嚼
When animals such as cows or sheep chew the cud, they slowly chew their partly digested food over and over again in their mouth before finally swallowing it.
英英词典释义
Noun
1. food of a ruminant regurgitated to be chewed again