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
They’re also filled with a ton of essential minerals like phosphorus, magnesium, calcium, potassium, sulfur, iron, and zinc.
—
Alessandra Signorelli, Vogue, 4 Apr. 2024
In addition to iron, this cereal is fortified with B vitamins, vitamins C and E, calcium, and zinc.
—Jennifer D'angelo Friedman, Parents, 1 Apr. 2024
To name just four, potassium, sodium, magnesium, and calcium are crucial for brain’s information processing capacity.
—IEEE Spectrum, 29 Mar. 2024
Pineapple: Pineapple packs in vitamins C, A, K, phosphorus, zinc and calcium.
—Clare Mulroy, USA TODAY, 24 Mar. 2024
Once inside, lead mimics calcium by binding to proteins and enzymes where calcium is typically involved.
—Aaron Specht, The Conversation, 7 Mar. 2024
Up your calcium and vitamin D intake: These nutrients help build strong bones.
—Cynthia Sass, Mph, Health, 24 Mar. 2024
If asked what helps build strong bones, the most common answer would be calcium.
—Sheah Rarback, Miami Herald, 22 Mar. 2024
Water, making its way through rocks and soils over geological time, breaks down and leaves minerals like calcium, chloride, potassium, sodium and magnesium.
—The Arizona Republic, 15 Mar. 2024
Alessandra Signorelli, Vogue, 4 Apr. 2024
In addition to iron, this cereal is fortified with B vitamins, vitamins C and E, calcium, and zinc.
—Jennifer D'angelo Friedman, Parents, 1 Apr. 2024
To name just four, potassium, sodium, magnesium, and calcium are crucial for brain’s information processing capacity.
—IEEE Spectrum, 29 Mar. 2024
Pineapple: Pineapple packs in vitamins C, A, K, phosphorus, zinc and calcium.
—Clare Mulroy, USA TODAY, 24 Mar. 2024
Once inside, lead mimics calcium by binding to proteins and enzymes where calcium is typically involved.
—Aaron Specht, The Conversation, 7 Mar. 2024
Up your calcium and vitamin D intake: These nutrients help build strong bones.
—Cynthia Sass, Mph, Health, 24 Mar. 2024
If asked what helps build strong bones, the most common answer would be calcium.
—Sheah Rarback, Miami Herald, 22 Mar. 2024
Water, making its way through rocks and soils over geological time, breaks down and leaves minerals like calcium, chloride, potassium, sodium and magnesium.
—The Arizona Republic, 15 Mar. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'calcium.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near calcium
Cite this Entry
“Calcium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/calcium. Accessed 18 Apr. 2024.
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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