n. [ OF. empereor, empereour, F. empereur, L. imperator, fr. imperare to command; in in + parare to prepare, order. See Parade, and cf. Imperative, Empress. ] The sovereign or supreme monarch of an empire; -- a title of dignity superior to that of king;
Emperor goose (Zoöl.),
Emperor moth (Zoöl.),
Emperor paper.
Purple emperor (Zoöl.),
n. The rank or office of an emperor. [ 1913 Webster ]