Source : Webster's Revised Unabridged Dictionary (1913)

Tuberose \Tube"rose`\, n. [Cf. G. tuberose, F. tub['e]reuse, NL.
   Polianthes tuberosa. See {Tuberous}.] (Bot.)
   A plant ({Polianthes tuberosa}) with a tuberous root and a
   liliaceous flower. It is much cultivated for its beautiful
   and fragrant white blossoms.

Source : WordNet®

Polianthes tuberosa
     n : a tuberous Mexican herb having grasslike leaves and
         cultivated for its spikes of highly fragrant lilylike
         waxy white flowers [syn: {tuberose}]