VAN Van, v. t. Etym: [Cf. F. vanner to winnow, to fan. See Van a winnowing machine.]
Defn: To fan, or to cleanse by fanning; to winnow. [Obs.] Bacon.
VANADATE
Van"a*date, n. Etym: [Cf. F. vanadate.] (Chem.)
Defn: A salt of vanadic acid. [Formerly also vanadiate.]
VANADIC
Va*nad"ic, a. (Chem.)
Defn: Pertaining to, or obtained from, vanadium; containing vanadium; specifically distinguished those compounds in which vanadium has a relatively higher valence as contrasted with the vanadious compounds; as, vanadic oxide. Vanadic acid (Chem.), an acid analogous to phosphoric acid, not known in the free state but forming a well-known series of salts.
VANADINITE
Va*nad"i*nite, n. (Min.)
Defn: A mineral occurring in yellowish, and ruby-red hexagonal crystals. It consist of lead vanadate with a small proportion of lead chloride.
VANADIOUS
Va*na"di*ous, a. (Chem.)
Defn: 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. [Sometimes written also vanadous.]