Wiktionary
n. (context inorganic compound English) A white powderous substance, CaO, commonly known as lime or quicklime; normally made by heating calcium carbonate.
WordNet
n. a white crystalline oxide used in the production of calcium hydroxide [syn: quicklime, lime, calx, calcined lime, fluxing lime, unslaked lime, burnt lime]
Wikipedia
Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline, crystalline solid at room temperature. The broadly used term " lime" connotes calcium-containing inorganic materials, in which carbonates, oxides and hydroxides of calcium, silicon, magnesium, aluminium, and iron predominate. By contrast, "quicklime" specifically applies to the single chemical compound calcium oxide. Calcium oxide which survives processing without reacting in building products such as cement is called free lime.
Quicklime is relatively inexpensive. Both it and a chemical derivative ( calcium hydroxide, of which quicklime is the base anhydride) are important commodity chemicals.
Usage examples of "calcium oxide".
We had bottled oxygen, calcium oxide, and activated charcoal to last us a week.
Zoltan's improvement was a way to take quicklime, calcium oxide, and combine it with the ammonium chloride to get all the ammonia back, which we could then recycle.
Usually, the silica is from sand (or quartz pebbles), the sodium oxide is formed from sodium carbonate (soda ash), and the calcium oxide is derived from calcium carbonate (limestone).
The silica is combined with sodium oxide flux and calcium oxide stabilizer.
They kept adding wood and limestone for a week, and when the fire was out, they had quick lime, calcium oxide.
Two court physicians, Torrella and Pintor, managed, with a varied degree of success, to treat this disease with metallic mercury, as well as other corrosive and abrasive substances, such as calcium oxide (similar to drain cleaner), ammonia and vitriol (acid).
The limelights in the old theaters used a hydrogen flame under a ball of lime, calcium oxide.
It came to rest as individual molecules of calcium carbonate, which vacuum and raw sunlight soon converted to carbon dioxide and calcium oxide, the latter of which covered the entire nearside surface of the moon, increasing its albedo by three hundred percent.
Down it had gone, as silicon dioxide or iron oxide or calcium oxide, some as trillions of tons of water.
Stale air was passed through a calcium oxide bath, which precipitated carbon dioxide as calcium carbonate.
I could see hands, abdomens, penises, mouths, and nostrils charred and eaten away by the calcium oxide, the bones sometimes exposed and already rotted.
When water is added to quicklime (calcium oxide), the result is immense heat.