- oxalicacid
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ox·al·ic acid (ŏk-sălʹĭk)
n.
A poisonous, colorless crystalline organic acid, HOOCCOOH·2H2O, found in many plants, such as spinach, and used as a bleach and rust remover.[Latin oxalis, wood sorrel; see oxalis + -ic.]
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Universalium. 2010.