from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A grayish-black crystalline compound, CaC2, obtained by heating pulverized limestone or quicklime with carbon and used to generate acetylene gas, as a dehydrating agent, and in the manufacture of graphite and hydrogen.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A black, solid, of formula CaC2, manufactured from lime and carbon at high temperatures; reacts with water to form acetylene.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a grey salt of calcium (CaC) used in making acetylene
Sorry, no etymologies found.
The Original Seven astronauts learned much of their celestial navigation at the domed Morehead Planetarium, built in 1949 on the campus of the University of North Carolina at Chapel Hill by alumnus John Motley Morehead III the inventor of a new process for manufacturing calcium carbide and a founder of Union Carbide.