vana

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 ]

n. (Min.) A mineral occurring in yellowish, brownish, and ruby-red hexagonal crystals. It consists of lead vanadate with a small proportion of lead chloride. [ 1913 Webster ]

a. (Chem.) Pertaining to, or containing, vanadium; specifically, designating those compounds in which vanadium has a lower valence as contrasted with the vanadic compounds; as, vanadious acid. Usually written vanadous. [ Sometimes written also vanadous. ] [ 1913 Webster ]

n. (Chem.) A salt of vanadious acid, analogous to a nitrite or a phosphite. [ 1913 Webster ]

n. [ NL., fr. Icel. Vanadīs, a surname of the Scandinavian goddess Freya. ] (Chem.) A rare element of the nitrogen-phosphorus group, found combined, in vanadates, in certain minerals, and reduced as an infusible, grayish-white metallic powder. It is intermediate between the metals and the non-metals, having both basic and acid properties. Symbol V (or Vd, rarely). Atomic weight 50.94 (C12=12.000). [ 1913 Webster +PJC ]

(Chem.) A yellow pigment consisting of a compound of vanadium. [ Webster 1913 Suppl. ]

a. (Chem.) 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 [ Sometimes written also vanadious. ]. [ 1913 Webster +PJC ]