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Meaning of Dutchman's-pipe

Dutch•man's-pipe

Pronunciation: (duch'munz-pīp'), [key]
— n.
  1. a climbing vine, Aristolochia durior, of the birthwort family, having large, heart-shaped leaves and brownish-purple flowers of a curved form suggesting a tobacco pipe.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.