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[gwah-yoo-lee, wah-; Spanish gwah-yoo-le] /gwɑˈyu li, wɑ-; Spanish gwɑˈyu lɛ/
noun, plural guayules
[gwah-yoo-leez, wah-; Spanish gwah-yoo-les] /gwɑˈyu liz, wɑ-; Spanish gwɑˈyu lɛs/ (Show IPA)
a composite shrub, Parthenium argentatum, of the southwestern U.S. and Mexico, yielding a form of rubber.
the rubber obtained from this plant.
Origin of guayule
1905-10, Americanism; < Mexican Spanish < Nahuatl cuauholli or huauholli, equivalent to cuahu(itl) tree or huauh(tli) amaranth + olli rubber Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for guayule
  • Two species in particular that show potential are the jojoba and the guayule.
  • Determining ploidy level in guayule breeding populations.
  • The other is a consortium to develop technologies to produce natural rubber and other products from guayule.
  • The project was successful in exploring the potential of guayule rubber, but met market resistance.
  • Growth, rubber, and resin evaluation of two-year-old transgenic guayule.
British Dictionary definitions for guayule


a bushy shrub, Parthenium argentatum, of the southwestern US: family Asteraceae (composites)
rubber derived from the sap of this plant
Word Origin
from American Spanish, from Nahuatl cuauhuli, from cuahuitl tree + uli gum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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