Microcrystalline

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Microcrystalline \Mi`cro*crys"tal*line\, a. [Micro- +
     crystalline.] (Crystallog.)
     Crystalline on a fine, or microscopic, scale; consisting of
     fine crystals; as, the ground mass of certain porphyrics is
     microcrystalline.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  microcrystalline
       adj : containing crystals that are visible only under a microscope