Cud/kʌd/ Definition 1 of 2Pro Tip 1/3Animal Digestion Used to describe how some animals, like cows, digest food by chewing it twice. The cow is out in the field, peacefully chewing its cud. Pro Tip 2/3Ruminants' Habit 'Cud' is specific to ruminants, animals with a special stomach for digestion. Goats, being ruminants, often spend time chewing cud. Pro Tip 3/3Visual Imagery Involves mental visualization, usually of an animal chewing slowly and deliberately. Watching the calm buffalo chew cud can be quite relaxing.