資料來源 : Webster's Revised Unabridged Dictionary (1913)

Crocus \Cro"cus\ (kr[=o]"k[u^]s), n. [L., saffron, fr. Gr.
   kro`kos; cf. Heb. kark[=o]m, Ar. kurkum, Skr. ku[.n]kuma.]
   1. (Bot.) A genus of iridaceous plants, with pretty blossoms
      rising separately from the bulb or corm. {C. vernus} is
      one of the earliest of spring-blooming flowers; {C.
      sativus} produces the saffron, and blossoms in the autumn.

   2. (Chem.) A deep yellow powder; the oxide of some metal
      calcined to a red or deep yellow color; esp., the oxide of
      iron ({Crocus of Mars} or {colcothar}) thus produced from
      salts of iron, and used as a polishing powder.

   {Crocus of Venus} (Old Chem.), oxide of copper.