oxalic acid

noun Chemistry.
  1. a white, crystalline, water-soluble, poisonous acid, H2C2O4⋅2H2O, first discovered in the juice of the wood sorrel species of oxalis and obtained by reacting carbon monoxide with sodium hydroxide or certain carbohydrates with acids or alkalis: used chiefly for bleaching, as a cleanser, and as a laboratory reagent.

Origin of oxalic acid

First recorded in 1785–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for oxalic acid

oxalic acid

noun
  1. a colourless poisonous crystalline dicarboxylic acid found in many plants: used as a bleach and a cleansing agent for metals. Formula: (COOH) 2Systematic name: ethanedioic acid

Word Origin for oxalic acid

C18: from French oxalique, from Latin oxalis garden sorrel; see oxalis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

oxalic acid in Medicine

oxalic acid

[ŏk-sălĭk]
n.
  1. A poisonous crystalline organic acid found in many plants and used as an agent in chemical reduction.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

oxalic acid in Science

oxalic acid

[ŏk-sălĭk]
  1. A poisonous, crystalline acid found in a number of plants such as sorrel and the leaf blades of rhubarb. It is used for many industrial purposes, including rust removal and bleaching. Chemical formula: C2H2O4.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.