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De - Pt| English Dictionary: heliostat | by the DICT Development Group |
| 2 results for heliostat | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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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}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Heliostat \He"li*o*stat\, n. [Helio- + Gr. [?] placed, standing, fr. [?] to place, stand: cf. F. h[82]liostate.] 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. | |
