Source : Webster's Revised Unabridged Dictionary (1913)

Campion \Cam"pi*on\, n. [Prob. fr. L. campus field.] (Bot.)
   A plant of the Pink family ({Cucubalus bacciferus}), bearing
   berries regarded as poisonous.

   {Bladder campion}, a plant of the Pink family ({Cucubalus
      Behen} or {Silene inflata}), having a much inflated calyx.
      See {Behen}.

   {Rose campion}, a garden plant ({Lychnis coronaria}) with
      handsome crimson flowers.

Source : WordNet®

campion
     n : any plant of the genus Silene [syn: {silene}, {catchfly}]