Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of heliostat is as below...

Siderostat :: Siderostat (n.) An apparatus consisting essentially of a mirror moved by clockwork so as to throw the rays of the sun or a star in a fixed direction; -- a more general term for heliostat.

Heliostat :: Heliostat (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..

Random Fonts

Most Popular