Pronunciation: (gwä-yOO'lē, wä-; Sp. gwä-yOO'le), [key]
—pl. -lesPronunciation: (-lēz; Sp. -les). [key]
1. a composite shrub, Parthenium argentatum, of the southwestern U.S. and Mexico, yielding a form of rubber.
2. the rubber obtained from this plant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.