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- A cup-shaped piece of laboratory equipment used to contain chemical compounds when heating them to very high temperatures.
- A heat-resistant container in which metals are melted, usually at temperatures above 500°C, commonly made of graphite with clay as a binder.
- A very difficult and trying experience, that acts as a refining or hardening process.
- The Nuttall Encyclopedia
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. krūsul,
LG. krüsel, 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.] 1. 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,
2. A hollow place at the bottom of a
furnace, to receive the melted metal.
3. 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
- Webster's Unabridged Dictionary (1913)
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The correct spelling of this word ought to be: Crucible
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