refringency

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English

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Noun

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refringency (usually uncountable, plural refringencies)

  1. The power of a substance to refract a ray.
    • 1843, Richard Taylor, Scientific Memoirs:
      The velocity with which a luminous ray passes through a given body depends exclusively on the refringency of this body and on the velocity of emission of the ray, on the velocity it had in vacuo

References

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