( n. )
A line of light or heat proceeding from a radiant or reflecting point; a single element of light or heat propagated continuously; as, a solar ray; a polarized ray.
( n. )
A line of light or heat proceeding from a radiant or reflecting point; a single element of light or heat propagated continuously; as, a solar ray; a polarized ray.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012