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irrefrangible

[ir-i-fran-juh-buh l] /ˌɪr ɪˈfræn dʒə bəl/
adjective
1.
not to be broken or violated; inviolable:
an irrefrangible rule of etiquette.
2.
incapable of being refracted.
Origin
1710-1720
1710-20; ir-2 + refrangible
Related forms
irrefrangibility, irrefrangibleness, noun
irrefrangibly, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for irrefrangibility

irrefrangible

/ˌɪrɪˈfrændʒəbəl/
adjective
1.
not to be broken or transgressed; inviolable
2.
(physics) incapable of being refracted
Derived Forms
irrefrangibility, irrefrangibleness, noun
irrefrangibly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for irrefrangibility

irrefrangible

adj.

c.1719, "that cannot be broken," from assimilated form of in- "not, opposite of" (see in- (1)) + refrangible.

Online Etymology Dictionary, © 2010 Douglas Harper
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