Thionic

1 definition found

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

  Thionic \Thi*on"ic\, a. [Gr. ? brimstone, sulphur.] (Chem.)
     Of or pertaining to sulphur; containing or resembling
     sulphur; specifically, designating certain of the thio
     compounds; as, the thionic acids. Cf. {Dithionic},
     {Trithionic}, {Tetrathionic}, etc.
     [1913 Webster]