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