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
However, calcium deficiencies can be avoided by growing peas in neutral to slightly alkaline soils with plenty of organic matter.
—
Lauren Landers, Better Homes & Gardens, 17 Apr. 2025
Hammersmith says adding fluoride to drinking water is just like adding vitamin D to milk, calcium to orange juice, iodine to salt, or folic acid to breads and cereals.
—Sherri Gordon, Clc, Parents, 11 Apr. 2025
Its calcium content is also helpful for regulating metabolism and reducing levels of cortisol, also known as the stress hormone.
—Veronica Cristino, Vogue, 9 Apr. 2025
The same serving also delivers 20 grams of satiating protein and bone-boosting nutrients like calcium, magnesium, and vitamin D.21
6.
—Lauren O'Connor, Ms, Rdn, Health, 8 Apr. 2025
See All Example Sentences for calcium
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Lauren Landers, Better Homes & Gardens, 17 Apr. 2025
Hammersmith says adding fluoride to drinking water is just like adding vitamin D to milk, calcium to orange juice, iodine to salt, or folic acid to breads and cereals.
—Sherri Gordon, Clc, Parents, 11 Apr. 2025
Its calcium content is also helpful for regulating metabolism and reducing levels of cortisol, also known as the stress hormone.
—Veronica Cristino, Vogue, 9 Apr. 2025
The same serving also delivers 20 grams of satiating protein and bone-boosting nutrients like calcium, magnesium, and vitamin D.21
6.
—Lauren O'Connor, Ms, Rdn, Health, 8 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 23 Apr. 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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