سَدِيفٌ
A camel's hump: (S:) or a camel's hump cut into pieces: (M, TA:) or pieces [or slices] of a camel's hump: (Ham p. 258:) or the fat of a camel's hump: (M, K, and Ham p. 257:) [or a very fat hump of a camel: (Freytag, from the Deewán of Jereer:)] plural سَدَايءِفُ and سِدَافٌ. (TA.)