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Tertiary color

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



   3. (Geol.) Later than, or subsequent to, the Secondary.

   4. (Zo["o]l.) Growing on the innermost joint of a bird's
      wing; tertial; -- said of quills.

   {Tertiary age}. (Geol.) See under {Age}, 8.

   {Tertiary color}, a color produced by the mixture of two
      secondaries. ``The so-called tertiary colors are citrine,
      russet, and olive.'' --Fairholt.

   {Tertiary period}. (Geol.)
      (a) The first period of the age of mammals, or of the
          Cenozoic era.
      (b) The rock formation of that period; -- called also
          {Tertiary formation}. See the Chart of {Geology}.

   {Tertiary syphilis} (Med.), the third and last stage of
      syphilis, in which it invades the bones and internal
      organs.
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