REFRACTIVELY

Etymology

Adverb

refractively (comparative more refractively, superlative most refractively)

In a refractive manner

By means of refraction

Source: Wiktionary


REFRACTIVE

Re*fract"ive (r*frkt"v), a. Etym: [Cf. F. réfractif. See Refract.]

Definition: Serving or having power to refract, or turn from a direct course; pertaining to refraction; as, refractive surfaces; refractive powers. Refractive index. (Opt.) See Index of refraction, under Index.

– Absolute refractive index (Opt.), the index of refraction of a substances when the ray passes into it from a vacuum.

– Relative refractive index (of two media) (Opt.), the ratio of the sine of the angle of incidence to the sine of the angle of refraction for a ray passing out of one of the media into the other.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

12 June 2025

RAREFACTION

(noun) a decrease in the density of something; “a sound wave causes periodic rarefactions in its medium”


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