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crucible

crucible, vessel in which a substance is heated to a high temperature, as for fusing or calcining. The necessary properties of a crucible are that it maintain its mechanical strength and rigidity at high temperatures and that it not react in an undesirable way with its contents. Porcelain, iron, and platinum are used in the lab; graphite is usually used in industry, but firebrick is also used, especially when vessels of large capacity are needed. The chamber at the bottom of a metal-refining furnace, where the molten metal collects to be drawn off, is known as a crucible.

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"crucible." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 28 Jun. 2017 <http://www.encyclopedia.com>.

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"crucible." The Columbia Encyclopedia, 6th ed.. . Retrieved June 28, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/crucible

crucible

cru·ci·ble / ˈkroōsəbəl/ • n. a ceramic or metal container in which metals or other substances may be melted or subjected to very high temperatures. ∎  a place or occasion of severe test or trial. ∎  a place or situation in which different elements interact to produce something new.

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"crucible." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 28 Jun. 2017 <http://www.encyclopedia.com>.

"crucible." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (June 28, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/crucible-0

"crucible." The Oxford Pocket Dictionary of Current English. . Retrieved June 28, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/crucible-0

crucible

crucible vessel for fusing metals. XV (early forms corusible, kressibulle). — medL. crucibulum night-lamp, crucible, f. L. crux, cruc- CROSS 1; perh. orig. lamp hanging before a crucifix.

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"crucible." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 28 Jun. 2017 <http://www.encyclopedia.com>.

"crucible." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (June 28, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/crucible-1

"crucible." The Concise Oxford Dictionary of English Etymology. . Retrieved June 28, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/crucible-1

crucible

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"crucible." Oxford Dictionary of Rhymes. . Encyclopedia.com. 28 Jun. 2017 <http://www.encyclopedia.com>.

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"crucible." Oxford Dictionary of Rhymes. . Retrieved June 28, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/crucible