FAT — specifically the hard SUET packed around the internal organs (kidneys, liver, entrails), not the marbled fat within meat itself, and a distinct word from shemen, the pourable OIL of Leviticus 2's grain offerings. Leviticus 1 already burned an animal's fat as part of the whole burnt-offering without pausing to name it; here, in the peace-offering, chelev becomes the WHOLE of what reaches the altar (Leviticus 3:3-4, 9-10, 14-16) — everything else is eaten — and the chapter closes by making that boundary permanent: 'you shall eat neither fat nor blood' (3:17), a perpetual statute restated with a real penalty attached later in the book (Leviticus 7:23, 25, not yet on these pages). → first discussed at Lev 3:3