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Webster 1913 Edition


Crucible

Cru′ci-ble

(krṳ′sĭ-b’l)
,
Noun.
[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, etc.
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 manufacture.

Webster 1828 Edition


Crucible

CRUCIBLE

,
Noun.
1.
A chemical vessel or melting pot, made of earth, and so tempered and baked, as to endure extreme heat without melting. It is used for melting ores, metals, &c.
2.
A hollow place at the bottom of a chemical furnace.

Definition 2022


crucible

crucible

English

Noun

crucible (plural crucibles)

  1. (chemistry) 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.

Translations