cloven hoof
Refers to the divided hoof of animals such as cattle, sheep, goats, and deer. A somewhat technical or descriptive term.
Cows and sheep are animals with cloven hooves.
cloven-hoofed animal
Compound of 双 (sō, 'pair') and 蹄 (tei, 'hoof'). The exact historical derivation is uncertain, but the meaning is transparent from the kanji.