'Xanthium' definitions:
Definition of 'Xanthium'
From: WordNet
noun
Coarse herbs having small heads of greenish flowers followed by burrs with hooked bristles [syn: Xanthium, genus Xanthium]
Definition of 'Xanthium'
From: GCIDE
- Xanthium \Xan"thi*um\, n. [NL., fr. Gr. xa`nqion a plant used for dyeing the hair yellow, said to be the {Xanthium strumarium}, from xanqo`s yellow.] (Bot.) A genus of composite plants in which the scales of the involucre are united so as to form a kind of bur; cocklebur; clotbur. [1913 Webster]