from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A binary compound consisting of carbon and a more electropositive element, especially calcium.
- noun Any of various hard durable materials made of compacted binary compounds of carbon, especially those with silicon, boron, or a heavy metal, used as abrasives and in tools that cut metal.
from The Century Dictionary.
- noun A compound of carbon with a metal. Formerly called
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A binary compound of carbon with some other element or radical, in which the carbon plays the part of a negative; -- formerly termed
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry Any
binary compoundof carbonand a more electropositive element
- noun chemistry The
polyatomicion C22−, or any of its salts.
- noun chemistry The
monatomicion C4−, or any of its salts.
- noun chemistry A
carbon-containing alloyor dopingof a metal or semiconductor, such as steel.
- noun chemistry
- noun cycling
trivialname for calcium carbide(CaC2), used to produce acetylenein bicycle lamps in the early 1900s.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a binary compound of carbon with a more electropositive element
Sorry, no etymologies found.
Boron carbide is one of the two most commonly used materials in the manufacture of the ceramic ballistic-protective plates used today by America’s frontline troops.
Scientists have developed a way to make T-shirt fabric reinforced with boron carbide, which is the same material used to strengthen military tanks.
One of these was a genuine old-fashioned miner's headlamp called the carbide lantern.
Carbide of 1 inch mesh and above shall not contain more than 5 per cent. of dust, such dust to be defined as carbide capable of passing through a mesh of one-sixteenth of an inch.
The sulphur in the gas comes from aluminium sulphide in the carbide, which is produced in the electric furnace by the interaction of impurities containing aluminium and sulphur (clay-like bodies, &c.) present in the lime and coke; this aluminium sulphide is attacked by water and yields sulphuretted hydrogen.
The upper part, "E," is a small reservoir in which water is put; this water is released in small quantities through the tube at the right, and, flowing into the lower part of the lamp, comes in contact with the calcium carbide, which is in the receptacle "P"; the gas thus generated is held in the reservoir "G," and when sufficient pressure has been created is forced out through the burner "B."
The movable carbide chamber _D_ has its upper perforated part half filled with carbide, which is pressed upwards by a spring _D'_.
There is, however, one particular type of generator in which as a matter of fact the carbide is the moving constituent, viz., the
Most of these defects can be avoided by using granulated carbide, which is more uniform in size and shape, or by employing a granulated and "treated" carbide which has been dipped in some non-aqueous liquid to make it less susceptible to the action of moisture.
The phosphorus in the gas comes from calcium phosphide in the calcium carbide, which is attacked by water, and yields phosphoretted hydrogen (or phosphine, as it will be termed hereafter).