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
Examples of calcium in a Sentence
Her doctor said she should eat more foods that are high in calcium, such as milk and cheese.
Recent Examples on the Web
If magnesium is low, the amount of calcium in your cells will likely increase.
—
Kirstyn Hill, Pharmd, Mph, Health, 30 Apr. 2025
Cottage Cheese and Fruit Cottage cheese is rich in calcium and a good source of casein protein, which is easily digested and absorbed slowly.
—Allison Herries, Verywell Health, 28 Apr. 2025
In fact, dairy intake, specifically yogurt and cheese, might even help lower inflammation and lessen endo symptoms by upping your levels of vitamin D and calcium.
—Erica Sloan, SELF, 25 Apr. 2025
To maintain healthy bones, establish a regular exercise routine that includes weight training, and incorporate foods rich in vitamin D and calcium into your diet.
—Caroline C. Boyle, USA Today, 21 Apr. 2025
See All Example Sentences for calcium
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Kirstyn Hill, Pharmd, Mph, Health, 30 Apr. 2025
Cottage Cheese and Fruit Cottage cheese is rich in calcium and a good source of casein protein, which is easily digested and absorbed slowly.
—Allison Herries, Verywell Health, 28 Apr. 2025
In fact, dairy intake, specifically yogurt and cheese, might even help lower inflammation and lessen endo symptoms by upping your levels of vitamin D and calcium.
—Erica Sloan, SELF, 25 Apr. 2025
To maintain healthy bones, establish a regular exercise routine that includes weight training, and incorporate foods rich in vitamin D and calcium into your diet.
—Caroline C. Boyle, USA Today, 21 Apr. 2025
See All Example Sentences for calcium
Cite this Entry
“Calcium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/calcium. Accessed 13 May. 2025.
Copy CitationKids Definition
calcium
noun
cal·ci·um
ˈkal-sē-əm
: a silver-white soft metallic element that is found only in combination with other elements (as in limestone) and is one of the necessary elements making up the bodies of most plants and animals see element
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
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