calcium carbonate

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noun

a white, crystalline, water-insoluble, tasteless powder, CaCO3, occurring in nature in various forms, as calcite, chalk, and limestone: used chiefly in dentifrices and polishes and in the manufacture of lime and cement.

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Origin of calcium carbonate

First recorded in 1870–75

Words nearby calcium carbonate

calcium, calcium antagonist, calcium arsenate, calcium blocker, calcium carbide, calcium carbonate, calcium channel blocker, calcium chloride, calcium cyanamide, calcium cyanide, calcium cyclamate

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use calcium carbonate in a sentence

If and when they starting testing this for real, they should be able to measure more precisely how specks of calcium carbonate or sulfuric acid spread out or clump together—a crucial test of how well these materials might work for geoengineering.
A first-of-its-kind geoengineering experiment is about to take its first step|Emily Luong|February 19, 2021|MIT Technology Review
Another crucial question is how the particles will react with other chemicals in the stratosphere—particularly the calcium carbonate, since it doesn’t occur up there naturally.
A first-of-its-kind geoengineering experiment is about to take its first step|Emily Luong|February 19, 2021|MIT Technology Review
There, the package would release 100 grams to 2 kilograms of calcium carbonate, a common mineral dust, to cover an area about 1 kilometer long by 100 meters in diameter.
Scientists Want to Fight Climate Change by Blocking the Sun With Dust|Vanessa Bates Ramirez|January 28, 2021|Singularity Hub
The minerals wash into the ocean, where tiny ocean creatures use the carbon to build their calcium carbonate shells.
How the Earth-shaking theory of plate tectonics was born|Carolyn Gramling|January 13, 2021|Science News

Over time, these processes should form a mix of loosely bound rock and dirt, mainly composed of magnesium carbonates, bicarbonate, and calcium carbonate, that could simply be left in place, Aines says.
Asbestos could be a powerful weapon against climate change (you read that right)|James Temple|October 6, 2020|MIT Technology Review
I take calcium and vitamin D supplements, but prescription medications are generally only for women in menopause.
You’re Never ‘Cured’ of an Eating Disorder|Carrie Arnold|December 20, 2014|DAILY BEAST
Fat-free or skim milkEveryone knows milk is an excellent source of calcium that will keep your bones in tip-top shape.
10 Ways to Stay Hydrated (That Aren’t Water)|DailyBurn|July 25, 2014|DAILY BEAST
Feel good about using cottage cheese as a dip because it delivers calcium, quality protein and potassium.
6 Ways to Avoid ‘Sochi Gut’ While Watching the Olympics|Jenna A. Bell|February 12, 2014|DAILY BEAST
The rhino beetle—fried, stewed, grilled, or roasted—is high in calcium and protein.
Cicadas, Grasshoppers, Locusts, Ants Among the Tastiest Insects|Nina Strochlic|May 14, 2013|DAILY BEAST
Excess calcium causing zinc and iron deficiency offers just one simple illustration of this kind of interaction.
Big Idea: Farming Treats Cancer?|Daphne Miller|April 18, 2013|DAILY BEAST
When ordinary methods do not suffice, it can usually be cleared by shaking up with a little magnesium carbonate and filtering.
A Manual of Clinical Diagnosis|James Campbell Todd
Crystals of calcium oxalate are insoluble in acetic acid or caustic soda.
A Manual of Clinical Diagnosis|James Campbell Todd
The long axis of the hip-roof crystal is often so shortened that it resembles the envelop crystal of calcium oxalate.
A Manual of Clinical Diagnosis|James Campbell Todd
The usual forms are: (a) Ammoniomagnesium phosphate crystals; (b) acid calcium phosphate crystals; and (c) amorphous phosphates.
A Manual of Clinical Diagnosis|James Campbell Todd
Characteristic octahedral crystals of calcium oxalate (Fig. 47) appear after ingestion of certain vegetables.
A Manual of Clinical Diagnosis|James Campbell Todd

British Dictionary definitions for calcium carbonate

calcium carbonate

noun

a white crystalline salt occurring in limestone, chalk, marble, calcite, coral, and pearl: used in the production of lime and cement. Formula: CaCO 3

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for calcium carbonate

calcium carbonate

A calcium salt used as a dietary supplement and as an antacid.

Scientific definitions for calcium carbonate

calcium carbonate

A white or colorless crystalline compound occurring naturally in chalk, limestone, and marble and in the minerals calcite and aragonite. It is used to make toothpaste, white paint, and cleaning powder. Chemical formula: CaCO3.