Part of speech: noun

A waving motion; a wave.

Part of speech: adjective


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Usage examples "undulation":

  1. At every moment the details stood out more clearly in the advancing light of morning; hamlets, farm- houses, villages, seemed to rise and peep out of every undulation of the land. - "The Man-Wolf and Other Tales", Emile Erckmann and Alexandre Chatrian.
  2. I now ordered the retreat after this manner: we should hurry down- hill and march quickly up the next undulation, so as to deceive the enemy with the idea of a precipitate retreat. - "Ismailia", Samuel W. Baker.
  3. Roman, Arab, Turk, Greek or Moorish heroes, pirates or princes, when they mean to set anything at defiance, choose nothing less than heaven and earth as their object; they divide the world between them as if it were an orange; they rush to the fight or stop for a speech with a fine shake of the head which sends a majestic undulation round the wig worn by them, even by the Moors, as we may see in one of the very rare dramas then published with engravings. - "The English Novel in the Time of Shakespeare", J. J. Jusserand.