资料来源 : Webster's Revised Unabridged Dictionary (1913)

Isodiametric \I`so*di`a*met"ric\, a. [Iso- + diametric.]
   1. (Crystallog.) Developed alike in the directions of the
      several lateral axes; -- said of crystals of both the
      tetragonal and hexagonal systems.

   2. (Bot.) Having the several diameters nearly equal; -- said
      of the cells of ordinary parenchyma.