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calcium

cal·ci·um [ ˈkal-sē-əm]

calcium

noun

[ˈkal-sē-əm]

Definition of calcium

: a metallic chemical element of the alkaline-earth group that occurs naturally only in combination and is essential to cellular functions in all known organisms — see Chemical Elements Table

Recent Examples on the Web

//Tests results showed her calcium levels at a level 14.
— Suzanne Baker, Naperville Sun, "Naperville woman taps faith, attitude and running to fight for her life: 'I didn't have time for cancer'," 11 June 2019
//The calcium in dairy helps bring blood pressure down, and fermented foods like yogurt may make blood vessels less rigid.
— Aviva Patz And Karyn Repinski, Woman's Day, "10 Natural Ways to Lower Your Blood Pressure," 20 Aug. 2018
//Other factors — such as the use of certain medications, autoimmune disease, tobacco use, excess alcohol intake, and low calcium levels — can amplify bone loss or dampen bone building, thus increasing the risk for osteoporosis.
— Farah Naz Khan, Vox, "Doctors are blasé about bone health and it’s leading to more broken bones in the elderly," 30 July 2018
//Soy and pea protein milks, which offer similar protein and calcium levels as cow’s milk.
— Sunset, "How to Choose the Right Non-Dairy Milk for You," 22 Jan. 2018
//Seawater's weight is about 3.5 percent dissolved salt; oceans are also rich in chlorine, magnesium, and calcium.
— Paul Chesley, National Geographic, "Our oceans are under attack by climate change, overfishing," 21 Mar. 2019
//Phosphorus helps form cell structures and works with calcium to keep bones healthy.
— Cynthia Sass, Mph, Health.com, "7 Chia Seed Benefits, According to a Nutritionist," 27 Aug. 2019
//Fair Oaks Farms is the flagship farm for Fairlife, a national brand of higher protein, higher calcium and lower fat milk.
— CBS News, "3 charged with animal cruelty in connection with undercover Fair Oaks Farms video," 11 June 2019
//Late-Night Spa: Wi Spa View this post on Instagram With the help of thousand-year-old minerals such as calcium, magnesium, iron, sodium and selenium, our salt sauna improves the physical, chemical and hydrodynamic conditions of the body.
— Taylore Glynn, Marie Claire, "The Must-Visit Spas & Salons in Los Angeles," 6 Sep. 2019

First Known Use of calcium

1808, in the meaning defined above

History and Etymology for calcium

New Latin, from Latin calc-, calx lime

Dictionary Entries near calcium

More Definitions forcalcium

calcium

noun

English Language Learners Definition of calcium

: a substance that is found in most plants and animals and that is especially important in people for strong healthy bones

calcium

noun

cal·ci·um | \ ˈkal-sē-əm \

Kids Definition of calcium

: a silvery soft metallic chemical element that is essential for strong healthy bones

calcium

noun, often attributive

cal·ci·um | \ ˈkal-sē-əm \

Medical Definition of calcium

: a silver-white bivalent metallic element that is an alkaline earth metal, occurs only in combination, and is an essential constituent of most plants and animals —symbol Ca — see Chemical Elements Table