Source : Webster's Revised Unabridged Dictionary (1913)

Safflower \Saf"flow`er\, n. [F. safleur, saflor, for safran,
   influenced by fleur flower. See {Saffron}, and {Flower}.]
   1. (Bot.) An annual composite plant ({Carthamus tinctorius}),
      the flowers of which are used as a dyestuff and in making
      rouge; bastard, or false, saffron.

   2. The dried flowers of the {Carthamus tinctorius}.

   3. A dyestuff from these flowers. See {Safranin}
      (b) .

   {Oil of safflower}, a purgative oil expressed from the seeds
      of the safflower.

Source : WordNet®

safflower
     n : thistlelike Eurasian plant widely grown for its red or
         orange flower heads and seeds that yield a valuable oil
         [syn: {false saffron}, {Carthamus tinctorius}]