calcium carbonate
noun
: a compound CaCO3 found in nature as calcite and aragonite and in plant ashes, bones, and shells and used especially in making lime and Portland cement and as a gastric antacid
Examples of calcium carbonate in a Sentence
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The rest come as the heat converts limestone (calcium carbonate) to lime (calcium oxide), releasing carbon dioxide.
—
Alcina Johnson Sudagar, The Conversation, 12 Feb. 2026
These tiny white chunks of calcium carbonate were embedded in its structure.
—Georgina Jedikovska, Interesting Engineering, 11 Feb. 2026
As a 2006 study from Earth and Planetary Science Letters describes, one of the main factors that differentiates the scaly-foot gastropod from others is that its shell isn’t composed primarily of calcium carbonate.
—Scott Travers, Forbes.com, 30 Jan. 2026
The method created white chunks called lime clasts, and when water seeped in, those clasts would dissolve and reform into calcium carbonate, allowing the concrete to heal and seal the damage.
—Andrea Margolis, FOXNews.com, 23 Dec. 2025
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Alcina Johnson Sudagar, The Conversation, 12 Feb. 2026
These tiny white chunks of calcium carbonate were embedded in its structure.
—Georgina Jedikovska, Interesting Engineering, 11 Feb. 2026
As a 2006 study from Earth and Planetary Science Letters describes, one of the main factors that differentiates the scaly-foot gastropod from others is that its shell isn’t composed primarily of calcium carbonate.
—Scott Travers, Forbes.com, 30 Jan. 2026
The method created white chunks called lime clasts, and when water seeped in, those clasts would dissolve and reform into calcium carbonate, allowing the concrete to heal and seal the damage.
—Andrea Margolis, FOXNews.com, 23 Dec. 2025
See All Example Sentences for calcium carbonate
Cite this Entry
“Calcium carbonate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/calcium%20carbonate. Accessed 16 Feb. 2026.
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