from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A binary compound consisting of carbon and a more electropositive element, especially calcium.
- n. A hard material made of compacted binary compounds of carbon and heavy metals, used to make tools that cut metal.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any binary compound of carbon and a more electropositive element
- n. The polyatomic ion C22−, or any of its salts.
- n. The monatomic ion C4−, or any of its salts.
- n. A carbon-containing alloy or doping of a metal or semiconductor, such as steel.
- n. Tungsten carbide.
- n. trivial name for calcium carbide (CaC2), used to produce acetylene in bicycle lamps in the early 1900s.
from the GNU version of the Collaborative International Dictionary of English
- n. A binary compound of carbon with some other element or radical, in which the carbon plays the part of a negative; -- formerly termed carburet.
from The Century Dictionary and Cyclopedia
- n. A compound of carbon with a metal. Formerly called carburet.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. 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.
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'_.
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).
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.
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.
There is, however, one particular type of generator in which as a matter of fact the carbide is the moving constituent, viz., the
Wordnik is becoming a not-for-profit! Read our announcement here.