"reflectivity" in the noun sense
1. coefficient of reflection, reflection factor, reflectance, reflectivity
the fraction of radiant energy that is reflected from a surface
2. reflection, reflexion, reflectivity
the ability to reflect beams or rays
3. reflectiveness, reflectivity
the capability of quiet thought or contemplation
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License