calcium
noun
cal·ci·um ˈkal-sē-əm 
often attributive
: 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
Example Sentences
Her doctor said she should eat more foods that are high in calcium, such as milk and cheese.
Recent Examples on the Web Vitamin D is a fat-soluble vitamin essential for many bodily functions including strengthening the bones, supporting cell growth and regulation, retaining and absorbing calcium and phosphorus, and improving immunity. 
Valerie Agyeman, Good Housekeeping, 1 Sep. 2022 Vitamin D is needed by the body to fully absorb calcium and phosphorus from food. Sandee Lamotte, CNN, 27 July 2022 Known for helping the body absorb phosphorus and calcium – both needed for healthy bones – vitamin D can also help reduce inflammation and control infection. Valerie Pavilonis, USA TODAY, 9 Feb. 2022 The potent berry carries phytonutrients like carotenoids phenolics, anthocyanins, and flavonoids which help the body to resist fungi, bacteria and viral infections, and is high in vitamins A, B1, B2, niacin, albumin, iron, phosphorus, and calcium. Daphne Ewing-chow, Forbes, 31 Jan. 2022 Work calcium and phosphorus into the soil below the bulbs at planting time. oregonlive, 1 Sep. 2021 Air-drying cast iron can lead to calcium deposits and rust. Nafeesah Allen, Better Homes & Gardens, 1 Sep. 2022 Mix the 100 percent calcium bentonite clay mask with water or, better yet, apple cider vinegar, to get rid of oil, dirt, and impurities. Harper's Bazaar Staff, Harper's BAZAAR, 31 Aug. 2022 One area not touched on in the USPSTF guidelines, for instance, is a person's coronary calcium score. Jen Christensen, CNN, 23 Aug. 2022 See More
Valerie Agyeman, Good Housekeeping, 1 Sep. 2022 Vitamin D is needed by the body to fully absorb calcium and phosphorus from food. Sandee Lamotte, CNN, 27 July 2022 Known for helping the body absorb phosphorus and calcium – both needed for healthy bones – vitamin D can also help reduce inflammation and control infection. Valerie Pavilonis, USA TODAY, 9 Feb. 2022 The potent berry carries phytonutrients like carotenoids phenolics, anthocyanins, and flavonoids which help the body to resist fungi, bacteria and viral infections, and is high in vitamins A, B1, B2, niacin, albumin, iron, phosphorus, and calcium. Daphne Ewing-chow, Forbes, 31 Jan. 2022 Work calcium and phosphorus into the soil below the bulbs at planting time. oregonlive, 1 Sep. 2021 Air-drying cast iron can lead to calcium deposits and rust. Nafeesah Allen, Better Homes & Gardens, 1 Sep. 2022 Mix the 100 percent calcium bentonite clay mask with water or, better yet, apple cider vinegar, to get rid of oil, dirt, and impurities. Harper's Bazaar Staff, Harper's BAZAAR, 31 Aug. 2022 One area not touched on in the USPSTF guidelines, for instance, is a person's coronary calcium score. Jen Christensen, CNN, 23 Aug. 2022 See More Word History
Etymology
New Latin, from Latin calc-, calx lime
First Known Use
1808, in the meaning defined above
Phrases Containing calcium
Kids Definition
calcium
noun
cal·ci·um ˈkal-sē-əm
: a silvery soft metallic chemical element that is essential for strong healthy bones
Medical Definition
calcium
noun
cal·ci·um ˈkal-sē-əm
often attributive
: 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