DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   nitrous /nˈaɪtɹəs/
   salpeterhaltig, salpeterhältig [Ös.] , salpetrig, Salpeter… <adj> [chem.]
      Synonym: containing saltpetre/saltpeter
    see: nitrous acid