Definition of "arsenate" []

• A salt or ester of arsenic acid. (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.

• "But do not reuse or burn lumber from old decks, fences, playground equipment or any pressure-treated wood structures from before 2008, because the wood was probably treated with chromated copper arsenate, which is poisonous."
• "It forms ferric arsenate, which is sparingly soluble."
• "Since it feeds on liquid sap only it is impossible to kill it by spraying the crop with a poison such as arsenate of lead."