Definitions for oxalic acidɒkˈsæl ɪk
Random House Webster's College Dictionary
ox•al′ic ac′idɒkˈsæl ɪk(n.)
a white, crystalline, water-soluble, poisonous acid, H2C2O4∙2H2O, used chiefly for bleaching, as a cleanser, and as a laboratory reagent.
Origin of oxalic acid:
1785–95; < F oxalique. See oxalis , -ic
oxalic acid, ethanedioic acid(noun)
a toxic colorless crystalline organic acid found in oxalis and other plants; used as a bleach and rust remover and in chemical analysis
A colourless, crystalline dicarboxylic acid, (COOH), found in rhubarb, spinach and other plants, often as crystals of the calcium salt.
U.S. National Library of Medicine
A strong dicarboxylic acid occurring in many plants and vegetables. It is produced in the body by metabolism of glyoxylic acid or ascorbic acid. It is not metabolized but excreted in the urine. It is used as an analytical reagent and general reducing agent.