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Reformer
reformer
reformism
reformist
refract
refracting telescope
refraction
refractive
refractive index
refractometer
refractor
refractory
refractory period
refrain (1)
refrain (2)
refrangible
refresco
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refractive index
re·frac·tive in·dex (plural re·frac·tive in·dex·es or re·frac·tive in·di·ces)


noun 
Definition:
 
Canada 
Same as  index of refraction
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