Crossword clues for crucible
crucible
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Crucible \Cru"ci*ble\ (kr[udd]"s[i^]*b'l), n. [LL. crucibulum a hanging lamp, an earthen pot for melting metals (cf. OF. croisel, creuseul, sort of lamp, crucible, F. creuset crucible), prob. of German origin; cf. OHG. kr[=u]sul, LG. kr["u]sel, hanging lamp, kroos, kruus, mug, jug, jar, D. kroes cup, crucible, Dan. kruus, Sw. krus, E. cruse. It was confused with derivatives of L. crux cross (cf. Crosslet), and crucibles were said to have been marked with a cross, to prevent the devil from marring the chemical operation. See Cruse, and cf. Cresset.]
A vessel or melting pot, composed of some very refractory substance, as clay, graphite, platinum, and used for melting and calcining substances which require a strong degree of heat, as metals, ores, etc.
A hollow place at the bottom of a furnace, to receive the melted metal.
-
A test of the most decisive kind; a severe trial; as, the crucible of affliction.
Hessian crucible (Chem.), a cheap, brittle, and fragile, but very refractory crucible, composed of the finest fire clay and sand, and commonly used for a single heating; -- named from the place of manufacture.
Douglas Harper's Etymology Dictionary
early 15c., from Medieval Latin crucibulum "melting pot for metals," originally "night lamp." First element might be Middle High German kruse "earthen pot." Or perhaps it is from Latin crux on some fancied resemblance to a cross. Used of any severe test or trial since 1640s.
Wiktionary
n. 1 (context chemistry English) A cup-shaped piece of laboratory equipment used to contain chemical compounds when heating them to very high temperatures. 2 A heat-resistant container in which metals are melted, usually at temperatures above 500°C, commonly made of graphite with clay as a binder. 3 The bottom and hottest part of a blast furnace; the hearth. 4 A very difficult and trying experience, that acts as a refining or hardening process.
WordNet
n. a vessel made of material that does not melt easily; used for high temperature chemical reactions [syn: melting pot]
Wikipedia
A crucible is a container that can withstand very high temperatures and is used for metal, glass, and pigment production as well as a number of modern laboratory processes. While crucibles historically were usually made from clay, they can be made from any material that withstands temperatures high enough to melt or otherwise alter its contents.
A crucible is a heat-resistant container in which materials can be heated to very high temperatures.
Crucible may also refer to:
Crucible is a geodemography computer system created by the United Kingdom-based grocery company Tesco. The system is run by a subsidiary Dunnhumby. The system collects information from the company's loyalty program, " Clubcard", as well as aggregating information from other geodemographic databases and other sources. The system has been used to sell customer information to other companies in the UK, leading to accusations in 2005 that the company, with its large share of the UK shopping sector, has become too powerful.
Crucible is an album by the heavy metal band Halford released in 2002. A remixed and remastered edition was released in 2010. In contrast with the retrospective approach of the previous Halford album, Resurrection, Crucible was an intentional effort to depart from the traditional metal themes. The album has been described as "hard[er], darker, and more moody than Resurrection".
Star Wars: Crucible is a Star Wars novel written by Troy Denning, released by Del Rey Books on July 9, 2013. Featuring Luke Skywalker, Han Solo and Leia Organa Solo, it is set 45 years after the 1977 film Star Wars.
Crucible is a collaborative code review application by Australian software company Atlassian. Like other Atlassian products, Crucible is a Web-based application primarily aimed at the enterprise, and certain features that enable peer review of a codebase may be considered enterprise social software.
Crucible is particularly tailored to distributed teams, and facilitates asynchronous review and commenting on code. Crucible also integrates with popular source control tools, such as Git and Subversion. Crucible is not open source, but customers are allowed to view and modify the code for their own use.
Usage examples of "crucible".
All Archaeon cultures, along with the containers holding them, should be incinerated in onboard crucible and the ashes jettisoned.
Go back to your crucifix or your crucible and change your bleeping incantation.
The backyard fared little better, home to a kiln, a crucible furnace, an annealing oven, and three or four incomplete sets of bocce balls that made interesting dents in the garden of weeds.
Provided there were bellows sufficiently strong to provide a current of air, a single-tier furnace was enough, as compared with the elaborate two-tier, kiln-type furnace which was needed for copper ore to be reduced in crucibles.
The mixture of ore and culm is either transferred to a black-lead crucible before the latter is put into the furnace, or, as some prefer, it is carefully swept into a crucible which has been imbedded in the fire.
If a mixture of many substances be fused and allowed to solidify in a crucible, there will be found some or all of the following.
The slag when fused should be liquid and homogeneous, and not too corrosive on the crucible.
It is then mixed with fluxes as described, and fused in the same crucible.
Detach the slag, replace in the crucible, and, when fused, add a mixture of 20 grams of litharge and 1 gram of charcoal.
De Geer had toured the crucible steel plant in April of 1632, Josh Modi had explained that steel was simply a carbon alloy of iron, as was cast iron.
In fact, the Catalan method, properly so called, requires the construction of kilns and crucibles, in which the ore and the coal, placed in alternate layers, are transformed and reduced, But Cyrus Harding intended to economize these constructions, and wished simply to form, with the ore and the coal, a cubic mass, to the center of which he would direct the wind from his bellows.
In the path of the projector was a large lux metal crucible surrounded by a ring of relux, and a series of points of relux aimed into the crucible.
The crucible was entirely enclosed in a large lux metal case which was lined, on the side away from the projector, with roughened relux.
The weighed portion of ore should be placed in a clean crucible and be heated to incipient redness: with pyrites the first effect is to drive off about half the sulphur as vapour which burns as flame over the ore.
Cadmium is the metal generally recommended, and the alloy is made by melting together a weighed portion of the gold with five or six times its weight of cadmium in a Berlin crucible and under a thin layer of potassium cyanide.