refraction
Concise Oxford English Dictionary © 2008 Oxford University Press:
refraction/rɪˈfrakʃn/
▶noun the fact or phenomenon of light, radio waves, etc., being refracted.
– derivatives
refractive adjective,
refractively adverb.
refractive adjective,
refractively adverb.
'refraction' also found in these Oxford entries:

