Dai"sy (?), n.; pl. Daisies (#). [OE. dayesye, AS. daegeseage day's eye, daisy. See Day, and Eye.] Bot. (a)
A genus of low herbs (Bellis), belonging to the family Compositae. The common English and classical daisy is B. prennis, which has a yellow disk and white or pinkish rays.
The whiteweed (Chrysanthemum Leucanthemum), the plant commonly called daisy in North America; -- called also oxeye daisy. See Whiteweed.
The word daisy is also used for composite plants of other genera, as Erigeron, or fleabane.
Michaelmas daisy Bot., any plant of the genus Aster, of which there are many species. -- Oxeye daisy Bot., the whiteweed. See Daisy (b).
© Webster 1913.