Thionol

1 definition found

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

  Thionol \Thi"on*ol\, n. [Thionine + -ol.] (Chem.)
     A red or violet dyestuff having a greenish metallic luster.
     It is produced artificially, by the chemical dehydration of
     thionine, as a brown amorphous powder.
     [1913 Webster]