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

Idiomorphous \Id`i*o*morph"ous\, a. [Gr. ? of peculiar form; ?
   peculiar + ? form.]
   1. Having a form of its own.

   2. (Crystallog.) Apperaing in distinct crystals; -- said of
      the mineral constituents of a rock.