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Webster 1913 Edition

(r?-fr?nˊj?-b?l′?-t?)

Noun.

[Cf. F.

réfrangibilité

The quality of being refrangible.

Noun.

[from refrangible.]

The disposition of rays of light to be refracted or turned out of a direct course, in passing out of one transparent body or medium into another.

refrangibility ‎(countable and uncountable, plural refrangibilities)