Noah Webster's Dictionary (n.) The fat and fatty tissues of an animal, especially the harder fat about the kidneys and loins in beef and mutton, which, when melted and freed from the membranes, forms tallow.

Multi-Version Concordance Suet (3 Occurrences) Leviticus 1:8 and Aaron's sons, the priests, shall lay the pieces, the head, and the fat, in order upon the wood that is on the fire which is upon the altar: (See JPS NAS) Leviticus 1:12 And he shall cut it into its pieces, with its head and its fat; and the priest shall lay them in order on the wood that is on the fire which is upon the altar: (See JPS NAS) Leviticus 8:20 And he cut the ram into its pieces; and Moses burnt the head, and the pieces, and the fat. (See JPS NAS)