Source : Webster's Revised Unabridged Dictionary (1913)

Coction \Coc"tion\, n. [L. coctio.]
   1. Act of boiling.

   2. (Med.)
      (a) Digestion. [Obs.]
      (b) The change which the humorists believed morbific
          matter undergoes before elimination. [Obs.]
          --Dunglison.