crucible
KROO-suh-bul
/ˈkruː.sə.bəl/
A vessel of ceramic or refractory metal used for melting or heating substances to extreme temperatures; metaphorically, a severe test or trial.
Implies extreme conditions that transform, melt, or purify whatever is placed inside.
The story behind the word. Alchemists in the Middle Ages used small earthenware melting pots stamped with a cross (crux) to protect their work from dark forces, or derived the name from early night lamps that had four cross-like wicks.
Word relationships
- melting pot: Melting pot emphasizes blending diverse cultures or elements; crucible emphasizes extreme heat, stress, or transformation.
- vessel: Vessel is any container; crucible strictly withstands extreme temperatures.
Commonly confused with
- crucifix: A crucifix is a religious cross symbol, distinct in function from a heat vessel despite historical root overlap.
Word family
- crucibles (noun): Plural form referring to multiple high-temperature melting vessels.
Collocations
- porcelain crucible
- crucible of war
- crucible furnace
- fiery crucible
Idioms & expressions
- in the crucible (under intense pressure or severe testing)
Example sentences
- "He placed the mineral sample inside a clay crucible and heated it over the intense flame." Metallurgy
- "The revolution served as a crucible in which a new political philosophy was forged." Figurative History
Memory hook
CRUcible heat is so intense it creates a CRUcial test for any material. Extreme heat container or severe trial.
When not to use
Do not use for standard room-temperature mixing bowls or glass containers.
Fun facts
- Arthur Miller titled his famous 1953 play 'The Crucible' to signify the severe political and moral trial of the Salem witch trials.
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