Found 1 items, similar to heliostat.
English → English (gcide)
Definition: heliostat
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]