Cockscomb \Cocks"comb`\ (k[o^]ks"k[=o]m`), n. [1st cock, n. + comb crest.] 1. See {Coxcomb}. 2. (Bot.) A plant ({Celosia cristata}), of many varieties, cultivated for its broad, fantastic spikes of brilliant flowers; -- sometimes called {garden cockscomb}. Also the {Pedicularis}, or lousewort, the {Rhinanthus Crista-galli}, and the {Onobrychis Crista-galli}.