calcium oxalate

noun

: 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

Examples of calcium oxalate in a Sentence

Recent Examples on the Web

Only certain trees can utilize CO2 to create calcium oxalate crystals, the first step in a process called the oxalate carbonate pathway. —Jack Knudson, Discover Magazine, 7 July 2025

There are four main types of kidney stones: calcium oxalate (the most common one), plus uric acid, struvite and cystine stones. —Daryl Austin, USA Today, 23 June 2025

Research shows that an oxalate-rich diet may lead to calcium oxalate kidney stones forming.14 Moderation is key: The recommended serving size for raw almonds is 1 ounce, which equals about 23 almonds.2 Almonds are nutrient-dense and calorie-dense, so the serving size is relatively small. —Brittany Lubeck, Verywell Health, 9 June 2025

People with kidney stones are often asked to follow a diet low in oxalates, substances that bind with calcium in the urine, leading to calcium oxalate kidney stones. —Jillian Kubala, Health, 27 Feb. 2025

Word History

First Known Use

1868, in the meaning defined above

Rhymes for calcium oxalate

• borosilicate
• decontaminate
• deoxycholate
• deteriorate
• differentiate
• diisocyanate
• dinoflagellate
• excommunicate
• incapacitate
• insubordinate
• intercorporate
• interpenetrate

Medical Definition

calcium oxalate

noun

: 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