Source : Webster's Revised Unabridged Dictionary (1913)

Solidago \Sol`i*da"go\, n. [NL., fr. L. solidare to strengthen,
   unite; -- so called in allusion to its reputed healing
   qualities.] (Bot.)
   A genus of yellow-flowered composite perennial herbs;
   golden-rod.

Source : WordNet®

Solidago
     n : goldenrod [syn: {genus Solidago}]