Pleochroism

2 definitions found

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

  Pleochroism \Ple*och"ro*ism\, n. [Gr.? mor? + ? color.]
     (Crystallog.)
     The property possessed by some crystals, of showing different
     colors when viewed in the direction of different axes.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  pleochroism
       n : the phenomenon of different colors appearing when certain
           crystals are viewed from different directions