'Emperor' definitions:

Definition of 'emperor'

(from WordNet)
noun
The male ruler of an empire
noun
Red table grape of California
noun
Large moth of temperate forests of Eurasia having heavily scaled transparent wings [syn: emperor, emperor moth, Saturnia pavonia]
noun
Large richly colored butterfly [syn: emperor butterfly, emperor]

Definition of 'Emperor'

From: GCIDE
  • 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. [1913 Webster]
  • 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). [1913 Webster]

Synonyms of 'emperor'

From: Moby Thesaurus