from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The crumbly residue left after a mineral or metal has been calcined or roasted.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The substance which remains after a metal or mineral has been thoroughly burnt, seen as being the essential substance left after the expulsion of phlogiston.
- n. the oxide left after calcination of a metal.
- n. calcium oxide
from the GNU version of the Collaborative International Dictionary of English
- n. Quicklime.
- n. The substance which remains when a metal or mineral has been subjected to calcination or combustion by heat, and which is, or may be, reduced to a fine powder.
- n. Broken and refuse glass, returned to the post.
from The Century Dictionary and Cyclopedia
- n. Lime or chalk.
- n. The ashy substance which remains after metals, minerals, etc., have been calcined. Metallic calxes are now generally called oxids.
- n. Broken and refuse glass, which is restored to the pots.
- n. In anatomy, the heel: commonly used in the Latin genitive (calcis), as in os calcis, the heel-bone or calcaneum.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a white crystalline oxide used in the production of calcium hydroxide
Middle English, from Latin, lime, limestone, pebble, from Greek khalix, pebble.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin calx ("lime"). (Wiktionary)