"ˌ noun
Etymology: retro- + reflector
: a device that reflects radiation (as light) so that the paths of the rays are parallel to those of the incident rays
"ˌ noun
Etymology: retro- + reflector
: a device that reflects radiation (as light) so that the paths of the rays are parallel to those of the incident rays
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012