Refraction Synonyms & Definitions

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• RefractionDefinition & Meaning in English

1. (n.) The change in the direction of ray of light, heat, or the like, when it enters obliquely a medium of a different density from that through which it has previously moved.
2. (n.) The act of refracting, or the state of being refracted.
3. (n.) The change in the direction of a ray of light, and, consequently, in the apparent position of a heavenly body from which it emanates, arising from its passage through the earths atmosphere; -- hence distinguished as atmospheric refraction, or astronomical refraction.
4. (n.) The correction which is to be deducted from the apparent altitude of a heavenly body on account of atmospheric refraction, in order to obtain the true altitude.