SIDEROSTAT
Etymology
Noun
siderostat (plural siderostats)
(astronomy) A heliostat that may be used with stars as well as the sun.
Source: Wiktionary
Sid"er*o*stat, n. Etym: [L. sidus, sideris, a star + Gr. (Astron.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition
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UNSEASONED
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