\Dai"sy\, n.; pl. {Daisies}. [OE. dayesye, AS.
d[ae]ges?eage day's eye, daisy. See {Day}, and {Eye}.] (Bot.)
(a) A genus of low herbs ({Bellis}), belonging to the family
    Composit[ae]. The common English and classical daisy is
    {B. prennis}, which has a yellow disk and white or
    pinkish rays.
(b) The whiteweed ({Chrysanthemum Leucanthemum}), the plant
    commonly called {daisy} in North America; -- called also
    {oxeye daisy}. See {Whiteweed}.

Note: 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) .