a. [ Pref. meta- + vanadic. ] (Chem.) Of, pertaining to, or designating, a vanadic acid analogous to metaphosphoric acid. [ 1913 Webster ]

a. [ Pyro- + vanadic. ] (Chem.) Pertaining to, or designating, an acid of vanadium, analogous to pyrophosphoric acid. [ 1913 Webster ]

a. (Chem.) Pertaining to, or obtained from, vanadium; containing vanadium; specifically, designating those compounds in which vanadium has a relatively higher valence as contrasted with the vanadous compounds; as, vanadic oxide. [ 1913 Webster ]

Vanadic acid (Chem.), an acid analogous to phosphoric acid, not known in the free state but forming a well-known series of salts. [ 1913 Webster ]