'Dystome' definitions:

Definition of 'Dystome'

From: GCIDE
  • Dystome \Dys"tome\, a. [Gr. dys- ill, hard + tomo`s cutting, diate`mnein to cut.] (Min.) Cleaving with difficulty. [1913 Webster]
  • Note: Datolite was called dystome spar by Mohs. Dysuria