aster Meaning, Definition & Usage

  1. noun any of various chiefly fall-blooming herbs of the genus Aster with showy daisylike flowers
  2. noun star-shaped structure formed in the cytoplasm of a cell having fibers like rays that surround the centrosome during mitosis

WordNet

As"ter noun
Etymology
L. aster aster, star, Gr. star. See Star.
Definitions
  1. (Bot.) A genus of herbs with compound white or bluish flowers; starwort; Michaelmas daisy.
  2. (Floriculture) A plant of the genus Callistephus. Many varieties (called China asters, German asters, etc.) are cultivated for their handsome compound flowers.

Webster 1913