The term 'hoof' is used to refer to the hard covering on the FOOT of certain animals, such as horses, cows, and goats. The crossword solutions for this term include 'FOOT' (4 letters), 'PACE' (4 letters), 'UNGULA' (6 letters), and 'UNGUIS' (6 letters). 'FOOT' is a general term for the lower extremity of an animal's limb, while 'PACE' is a unit of measurement used to describe the length of a stride taken by a horse or other animal. 'UNGULA' and 'UNGUIS' are both Latin terms that refer to the hoof of an animal, with 'UNGULA' referring to the hard outer covering and 'UNGUIS' referring to the hard inner covering.