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   Re·frac·tion

   /rəˈfrakSH(ə)n/

   

   noun

   • 1. the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
   • ▪ change in direction of propagation of any wave as a result of its traveling at different speeds at different points along the wave front.
   • ▪ measurement of the focusing characteristics of an eye or eyes.

   Word Origin mid 16th century: from late Latin refractio(n-), from refringere ‘break up’ (see refract).

   Scrabble Points: 15

   • R

     1

   • E

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   • F

     4

   • R

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   • A

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   • C

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   • T

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   • I

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   • O

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   • N

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