Sickle :: Sickle (n.) A reaping instrument consisting of a steel blade curved into the form of a hook, and having a handle fitted on a tang. The sickle has one side of the blade notched, so as always to sharpen with a serrated edge. Cf. Reaping hook, under Reap..
Sickle :: Sickle (n.) A group of stars in the constellation Leo. See Illust. of Leo.
Sicklebill :: Sicklebill (n.) Any one of three species of humming birds of the genus Eutoxeres, native of Central and South America. They have a long and strongly curved bill. Called also the sickle-billed hummer..