Definition of "vanadate" []

• Any of three anions, VO3, VO4, or V2O7, containing pentavalent vanadium. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The phosphates are often classified together with the arsenate, vanadate, tungstate, and molybdate minerals."
• "The principal sources of uranium and radium are the minerals carnotite (hydrous potassium-uranium vanadate) and pitchblende or uraninite (uranium oxide)."
• "An unrecorded but small quantity is obtained by the English from lead-vanadate mines in South Africa."