D defs.my
Entry 3 senses Webster, 1913

Aster

/(ăs"tẽr)/ · As·ter · IPA /ˈæs.tə(ɹ)/
01 n. A genus of herbs with compound white or bluish flowers; starwort; Michaelmas daisy.
  1. 1.
    A genus of herbs with compound white or bluish flowers; starwort; Michaelmas daisy.(Bot.)
  2. 2.
    A plant of the genus Callistephus. Many varieties (called China asters, German asters, etc.) are cultivated for their handsome compound flowers.(Floriculture)
  3. 3.
    A star-shaped figure of achromatic substance found chiefly in cells dividing by mitosis.(Biol.)