isodiametric

from The Collaborative International Dictionary of English v.0.48

Isodiametric \I`so*di`a*met"ric\, a. [Iso- + diametric.]
   [1913 Webster]
   1. (Crystallog.) Developed alike in the directions of the
      several lateral axes; -- said of crystals of both the
      tetragonal and hexagonal systems.
      [1913 Webster]

   2. (Bot.) Having the several diameters nearly equal; -- said
      of the cells of ordinary parenchyma.
      [1913 Webster]