refractive...

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• Refractive — Re*fract ive (r?*fr?kt ?v), a. [Cf. F. r[ e]fractif. 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.) …   The Collaborative International Dictionary of English

• refractive — 1670s, from L.L. refractivus, or from REFRACT (Cf. refract) + IVE (Cf. ive) …   Etymology dictionary

• refractive — ► ADJECTIVE ▪ of or involving refraction. DERIVATIVES refractively adverb …   English terms dictionary

• refractive — 1. Pertaining to refraction. 2. Having the power to refract. SYN: refringent. * * * re·frac·tive ri frak tiv adj 1) having power to refract <a refractive lens> 2) relating to or due to refraction <refractive phenomena> <refractive… …   Medical dictionary

• refractive — adj. Refractive is used with these nouns: ↑index …   Collocations dictionary

• refractive — adj. of or involving refraction. Phrases and idioms: refractive index the ratio of the velocity of light in a vacuum to its velocity in a specified medium …   Useful english dictionary

• Refractive surgery — Refractive eye surgery is any eye surgery used to improve the refractive state of the eye and decrease or eliminate dependency on glasses or contact lenses. This can include various methods of surgical remodeling of the cornea or cataract surgery …   Wikipedia

• Refractive index — Refractive Re*fract ive (r?*fr?kt ?v), a. [Cf. F. r[ e]fractif. 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… …   The Collaborative International Dictionary of English

• Refractive index contrast — Refractive index contrast, in an optical fiber, is a measure of the relative difference in refractive index of the core and cladding. Refractive index contrast, Delta;, is given by Delta; = ( n 12 n 22)/(2 n 12), where n 1 is the maximum… …   Wikipedia

• refractive index — n INDEX OF REFRACTION * * * the refractive power of a medium compared with that of air, which is assumed to be 1. Symbol n, n, or nD …   Medical dictionary

• refractive index — n. INDEX OF REFRACTION …   English World dictionary