Search Result for "refractiveness": 
Wordnet 3.0

NOUN (1)

1. the physical property of a medium as determined by its index of refraction;
[syn: refractivity, refractiveness]



The Collaborative International Dictionary of English v.0.48:

Refractiveness \Re*fract"ive*ness\, n.
   The quality or condition of being refractive.
   [1913 Webster]


WordNet (r) 3.0 (2006):

refractiveness
    n 1: the physical property of a medium as determined by its
         index of refraction [syn: refractivity, refractiveness]