from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Impossible to break; indestructible: irrefrangible cookware.
  • adj. Physics That cannot be refracted.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Not to broken or transgressed; inviolable.
  • adj. Incapable of being refracted.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Not refrangible; that can not be refracted in passing from one medium to another.

from The Century Dictionary and Cyclopedia

  • Not refrangible; not to be broken or violated.


Sorry, no etymologies found.



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  • adj. - that cannot or should not be broken; inviolable

    September 9, 2009