isodiametric

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 ]