guayule guayroto • guayule rubber · · · Info · Definitions · Synonyms · Characters · · guayule · · Text Latin · · Script 7 · · Length 4 · · Syllables Definitions · · · (noun) much-branched subshrub with silvery leaves and small white flowers of Texas and northern Mexico; cultivated as a source of rubber. Synonyms: Parthenium argentatum. · · Noun Definition 1 Synonyms · · · parthenium argentatum · · Synonym 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 l latin small letter l U+006C u latin small letter u U+0075 y latin small letter y U+0079