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reformism
reformist
refract
refracting telescope
refraction
refractive
refractive index
refractometer
refractor
refractory
refractory period
refrain (1)
refrain (2)
refrangible
refresco
refresh
refresh rate
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refractor

re·frac·tor [ ri fráktər ] (plural re·frac·tors)


noun 
Definition:
 
1. astronomy 
Same as  refracting telescope


2. light-refracting device: a device that alters the direction of a beam of light by passing it between two transparent materials of different density

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