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: R RÜ Râ Ré Rô Rö R& R- R. Ra Rb Rc Re Rf Rg Rh Ri Rn Ro Rp Rt Ru Rv Rw Ry

Table of Contents POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY

refractive

POS

Adjective

HYPHEN

re=frac=tive

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WORDNET DICTIONARY

Adjective refractive has 2 senses

refractive(a = adj.pert) refractile - of or relating to or capable of refraction; "the refractive characteristics of the eye"

Derived forms verb refract₂, verb refract₁, noun refractiveness₁, noun refractivity₁

refractive(s = adj.all) deflective - capable of changing the direction (of a light or sound wave); Array

Derived forms verb refract₂, verb refract₁, noun refractiveness₁, noun refractivity₁

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CIDE DICTIONARY

refractive, a. [Cf. F. réfractif. See Refract.].

Serving or having power to refract, or turn from a direct course; pertaining to refraction; as, refractive surfaces; refractive powers. [1913 Webster]

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.

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OXFORD DICTIONARY

refractive, adj. of or involving refraction.

Idiom

refractive index the ratio of the velocity of light in a vacuum to its velocity in a specified medium.

For further exploring for "refractive" in Webster Dictionary Online