(chemistry) Derived from vanadium; containing vanadium with lower valence or in divalent state.
The term vanadous is used to describe an acid with vanadium of lower valence whereas vanadic is for an acid with vanadium of higher valence.
Word origin: Latin vanadium + -ous.
Related terms: vanadous acid.
Alternative form: vanadious.
See also: vanadium.