zinnia Meaning, Definition & Usage

  1. noun any of various plants of the genus Zinnia cultivated for their variously and brightly colored flower heads
    old maid flower; old maid.

WordNet

Zin"ni*a noun
Etymology
NL. So called after Professor Zinn, of Göttingen.
Definitions
  1. (Bot.) Any plant of the composite genus Zinnia, Mexican herbs with opposite leaves and large gay-colored blossoms. Zinnia elegans is the commonest species in cultivation.

Webster 1913