D defs.my
Entry 1 sense Webster, 1913

Vanadous

· Van·a·dous · IPA
01 a. Of or pertaining to vanadium; obtained from vanadium; -- said of an acid containing one equivalent of vanadium and two of oxygen; specifica…
  1. 1.
    Of or pertaining to vanadium; obtained from vanadium; -- said of an acid containing one equivalent of vanadium and two of oxygen; specifically, designating those compounds in which vanadium has a lower valence as contrasted with the vanadic compounds; as, vanadous acid(Chem.)