Siderostat

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Siderostat \Sid"er*o*stat\, n. [L. sidus, sideris, a star + Gr.
     ??? standing, fixed, fr. ???? to place.] (Astron.)
     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}.
     [1913 Webster]