The Collaborative International Dictionary
Emperor \Em"per*or\, 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; as, the emperor of Germany or of Austria; the emperor or Czar of Russia.
Emperor goose (Zo["o]l.), a large and handsome goose ( Philacte canagica), found in Alaska.
Emperor moth (Zo["o]l.), one of several large and beautiful bombycid moths, with transparent spots on the wings; as the American Cecropia moth ( Platysamia cecropia), and the European species ( Saturnia pavonia).
Emperor paper. See under Paper.
Purple emperor (Zo["o]l.), a large, strong British butterfly ( Apatura iris).
WordNet
n. large moth of temperate forests of Eurasia having heavily scaled transparent wings [syn: emperor, Saturnia pavonia]