'Rhododendron' definitions:

Definition of 'rhododendron'

(from WordNet)
noun
Any shrub of the genus Rhododendron: evergreen shrubs or small shrubby trees having leathery leaves and showy clusters of campanulate (bell-shaped) flowers

Definition of 'Rhododendron'

From: GCIDE
  • Rhododendron \Rho`do*den"dron\, n. [L., fr. Gr. "rodo`dendron, literally, rose tree; "ro`don rose + de`ndron tree. See Rose.] (Bot.) A genus of shrubs or small trees, often having handsome evergreen leaves, and remarkable for the beauty of their flowers; rosebay. [1913 Webster]