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.) 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. [1913 Webster]

The Collaborative International Dictionary of English. 2000.


Look at other dictionaries:

  • 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 — adjective Date: 1673 1. having power to refract 2. relating or due to refraction • refractively adverb • refractiveness noun • refractivity noun …   New Collegiate Dictionary

  • refractive — adj. [L. re, back; frangere, break] To turn from a direct course; turned aside …   Dictionary of invertebrate zoology

  • refractive — refractively, adv. refractiveness, n. /ri frak tiv/, adj. 1. of or pertaining to refraction. 2. Also, refractile. having power to refract. [1665 75; < LL refractivus (of pronouns) reflexive. See REFRACT, IVE] * * * …   Universalium

  • refractive — adjective Describing that which refracts …   Wiktionary

  • refractive — re frac·tive || rɪ fræktɪv adj. causing refraction, causing rays of light or energy to bend as they pass from one medium into another …   English contemporary dictionary

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