Refractory Definition

rĭ-frăktə-rē
refractories
adjective
Showing or characterized by obstinate resistance to authority or control.
Refractory children; refractory behavior.
American Heritage
Hard to manage; stubborn; obstinate.
Webster's New World
Resistant to heat; hard to melt or work.
Webster's New World
Not yielding to treatment, as a disease.
Webster's New World
Able to resist disease.
Webster's New World
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noun
refractories
Something refractory; specif., a heat-resistant material used in lining furnaces, etc.
Webster's New World
Synonyms:
furnace lining
other
Of or relating to a refractory period.
American Heritage Science

Other Word Forms of Refractory

Noun

Singular:
refractory
Plural:
refractories

Origin of Refractory

  • Alteration (influenced by adjectives in –ory) of obsolete refractary from Latin refrāctārius from refrāctus past participle of refringere to break up refract

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin refractārius (“obstinate"), from refractus, past participle of refringere (“to break up"). Originally refractary reanalysed after other adjectives in -ory

    From Wiktionary

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