Terrestrial refraction

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Related to Terrestrial refraction: astronomical refraction, Atmospheric refraction
the change in the apparent altitude of a distant point on or near the earth's surface, as the top of a mountain, arising from the passage of light from it to the eye through atmospheric strata of varying density.

See also: Refraction

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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