HELIOSTAT


Meaning of HELIOSTAT in English

( n. )

An instrument consisting of a mirror moved by clockwork, by which a sunbeam is made apparently stationary, by being steadily directed to one spot during the whole of its diurnal period; also, a geodetic heliotrope.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.