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
This protein powder contains 20 grams of protein per serving and a small amount of calcium, another important nutrient during pregnancy.
—
Alexandra Paetow Ms Rdn, Parents, 15 Apr. 2024
Now watch how to remove unwanted calcium build-up on your hair.
—Sophia Panych, Allure, 2 Apr. 2024
Adults need about 1,000 milligrams (mg) of calcium per day.2 Read on to learn what non-dairy foods are high in calcium.
—Christine Mattheis, Health, 30 Mar. 2024
Minerals like calcium are like bricks that lay down the foundation of that building.
—David Oliver, USA TODAY, 28 Mar. 2024
This is largely due to the mineral composition of spring water, which contains varying amounts of sulfur, manganese, magnesium, zinc, selenium, strontium, silica, and calcium bicarbonate.
—Jack Knudson, Discover Magazine, 26 Mar. 2024
Lead looks a lot like calcium to many of the systems in our body.
—Aaron Specht, The Conversation, 7 Mar. 2024
Fish are also an ample source of vitamin D and calcium.
—Christian Mysliwiec, Fox News, 5 Mar. 2024
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
Alexandra Paetow Ms Rdn, Parents, 15 Apr. 2024
Now watch how to remove unwanted calcium build-up on your hair.
—Sophia Panych, Allure, 2 Apr. 2024
Adults need about 1,000 milligrams (mg) of calcium per day.2 Read on to learn what non-dairy foods are high in calcium.
—Christine Mattheis, Health, 30 Mar. 2024
Minerals like calcium are like bricks that lay down the foundation of that building.
—David Oliver, USA TODAY, 28 Mar. 2024
This is largely due to the mineral composition of spring water, which contains varying amounts of sulfur, manganese, magnesium, zinc, selenium, strontium, silica, and calcium bicarbonate.
—Jack Knudson, Discover Magazine, 26 Mar. 2024
Lead looks a lot like calcium to many of the systems in our body.
—Aaron Specht, The Conversation, 7 Mar. 2024
Fish are also an ample source of vitamin D and calcium.
—Christian Mysliwiec, Fox News, 5 Mar. 2024
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
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 23 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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