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

Recent Examples on the Web Quartz sand, made up of silicon dioxide, is the most common sand found on beaches, except at tropical coasts where coral sand beaches, made up of calcium carbonate, are found. Stephen P. Leatherman, The Conversation, 9 July 2024 Quartz sand, made up of silicon dioxide, is the most common sand found on beaches, except for tropical coasts where coral sand beaches, made up of calcium carbonate, are found. Stephen P. Leatherman, Washington Post, 6 July 2024 The research team used a new technique to date the calcium carbonate crust that formed over the art to more than 50,000 years old. Katie Hunt, CNN, 6 July 2024 The dark red depiction of a large pig and three small, human-like figures was created a minimum of 51,200 years ago, according to researchers using new laser dating technology, which analyzes calcium carbonate crystals on top of the painting. The Editors Of Artnews, ARTnews.com, 5 July 2024 See all Example Sentences for calcium carbonate 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'calcium carbonate.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1868, in the meaning defined above

Time Traveler
The first known use of calcium carbonate was in 1868

Dictionary Entries Near calcium carbonate

Cite this Entry

“Calcium carbonate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/calcium%20carbonate. Accessed 19 Jul. 2024.

Kids Definition

calcium carbonate

noun
: a solid substance found in nature as limestone and marble and in plant ashes, bones, and shells and used especially in making lime and portland cement

Medical Definition

calcium carbonate

noun
: a calcium salt CaCO3 that is found in limestone, chalk, marble, plant ashes, bones, and many shells, that is obtained also as a white precipitate by passing carbon dioxide into a suspension of calcium hydroxide in water, and that is used in dentifrices and in pharmaceuticals as an antacid and to supplement bodily calcium stores

More from Merriam-Webster on calcium carbonate

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