calf1 / kaf/ • n. (pl. calves / kavz/ ) 1. a young bovine animal, esp. a domestic cow or bull in its first year. ∎ the young of some other large mammals, such as elephants, rhinoceroses, large deer and antelopes, and whales. ∎ short for calfskin.2. a floating piece of ice detached from an iceberg.PHRASES: in (or with) calf (of a cow) pregnant.kill the fatted calfsee fat.DERIVATIVES: calf·like / -ˌlīk/ adj.calf2 • n. (pl. calves / kavz/ ) the fleshy part at the back of a person's leg below the knee.