Cud
Food brought back up from the rumen to be chewed again, as cattle rest.
Also: rumination, chewing the cud, jugali
Chewing the cud is how cattle break down coarse plant food. After grazing quickly, a cow lies or stands at rest and brings up a soft ball of partly fermented food, the cud or bolus, from the rumen, chews it slowly for about a minute, swallows it and brings up the next. Cattle spend around six to eight hours a day ruminating, and steady cudding is a sign of a settled, healthy animal that herders watch for. The habit gives English the phrase to chew the cud, meaning to think something over, and Hindi uses jugali in the same way. Saliva swallowed with the cud helps keep the rumen from becoming too acid.