1. Mammal: This is the most general term, as cows are warm-blooded vertebrates that give birth to live young and nurse them with milk.
2. Ungulate: This term refers to animals with hooves. Cows are specifically Artiodactyls, a suborder of ungulates with even-toed hooves.
3. Ruminant: This term describes animals with a four-chambered stomach that allows them to digest tough plant material through a process called rumination. Cows are classic examples of ruminants.