calcium oxalate


: a crystalline salt CaC2O4 normally deposited in many plant cells and in animals sometimes excreted in urine or retained in the form of urinary calculi

Example Sentences

Recent Examples on the Web However, calcium in the form of a supplement may increase your chances of forming new calcium oxalate kidney stones.34 Recent research has shown that supplemental calcium may increase the risk for kidney stone formation in postmenopausal women supplementing with 1,000 mg of calcium per day. Casey Seiden, Ms Rdn Cdn Cdces, Verywell Health, 12 Mar. 2023 The study points out that the eggs are coated in calcium oxalate, a compound that’s somewhat resistant to digestive acid. Mark Barna, Discover Magazine, 1 June 2018 When energy is available, the microbes spit out oxalic acid, which precipitates as calcium oxalate crystals and causes further disruption. Jeffrey Marlow, Discover Magazine, 27 Feb. 2016 All members of the aroid family contain calcium oxalate crystals which can cause blistering and are considered potentially toxic. Janet Carson, Arkansas Online, 20 Dec. 2021 In their recent research, summarized in Nature Reviews Urology, the researchers primarily used GeoBioCell to study growing calcium oxalate crystals, which account for about 70 percent of kidney stones. Harini Barath, Scientific American, 16 Aug. 2021 Many common indoor houseplants, including pothos and dieffenbachia, contain calcium oxalate crystals that can cause mouth pain and stomach upset in children and pets. Lisa Boone, Los Angeles Times, 29 Apr. 2021 Unfortunately, Swiss cheese plant contains calcium oxalate crystals, which are toxic to pets, causing irritation of the mouth, lips, or tongue and also may cause drooling, vomiting or difficulty swallowing. Arricca Elin Sansone, Country Living, 10 Mar. 2021 In addition to the DNA analysis, the researchers scoured the surface of the drawings with a microscope and spotted incrustations of calcium oxalate crystals produced by these fungi. Matt Simon, Wired, 25 Nov. 2020 See More

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Word History

First Known Use

1868, in the meaning defined above

Time Traveler
The first known use of calcium oxalate was in 1868

Dictionary Entries Near calcium oxalate

Cite this Entry

“Calcium oxalate.” Dictionary, Merriam-Webster, Accessed 10 Jun. 2023.

Medical Definition

calcium oxalate

: a colorless crystalline salt CaC2O4·H2O that is noted for its insolubility and is sometimes excreted in urine or retained in the form of urinary calculi
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