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2 definitions found
 for crocus
From The Collaborative International Dictionary of English v.0.48 :

  Rouge \Rouge\, n. [F.]
     1. (Chem.) A red amorphous powder consisting of ferric oxide.
        It is used in polishing glass, metal, or gems, and as a
        cosmetic, etc. Called also crocus, jeweler's rouge,
        etc.
        [1913 Webster]
  
     2. A cosmetic used for giving a red color to the cheeks or
        lips. The best is prepared from the dried flowers of the
        safflower, but it is often made from carmine. --Ure.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  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. Crocus vernus
        is one of the earliest of spring-blooming flowers; Crocus
        sativus produces the saffron, and blossoms in the autumn.
        [1913 Webster]
  
     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.
        [1913 Webster]
  
     Crocus of Venus (Old Chem.), oxide of copper.
        [1913 Webster]

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