the food that cows and similar animals bring back from the stomach into the mouth to chew again （牛等动物）反刍的食物，倒嚼的食物 cows chewing the cud 在咀嚼反刍食物的牛
Word OriginOld English cwidu, cudu, of Germanic origin; related to German Kitt ‘cement, putty’ and Swedish kåda ‘resin’.