What does refractivity mean in crosswords?

refractivity means: the physical property of a medium as determined by its index of refraction

Word entry · 12 letters

refractivity

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12 lettersPart of speech nounSorted acefiirrttvyStarts with REnds with Y0 clues

1R2E3F4R5A6C7T8I9V10I11T12Y

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From refractive + -ity.

Source: Wiktionary, CC BY-SA 4.0

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