The Collaborative International Dictionary of English v.0.48:

Floret \Flo"ret\, n. [OF. florete, F. fleurette, dim. of OF.
   lor, F. fleur. See Flower, and cf. Floweret, 3d
   Ferret.]
   1. (Bot.) A little flower; one of the numerous little flowers
      which compose the head or anthodium in such flowers as the
      daisy, thistle, and dandelion. --Gray.
      [1913 Webster]

   2. [F. fleuret.] A foil; a blunt sword used in fencing.
      [Obs.] --Cotgrave.
      [1913 Webster]

WordNet (r) 3.0 (2006):

floret
    n 1: a diminutive flower (especially one that is part of a
         composite flower) [syn: floret, floweret]