heliostat

== English == === Etymology === Circa 1750, from New Latin heliostata, from Ancient Greek ἥλιος (hḗlios, “sun”) + Latin status (“stationary”). By surface analysis, helio- +‎ -stat. === Noun === heliostat (plural heliostats) A device that includes a plane mirror which turns so as to keep reflecting sunlight toward a predetermined target, compensating for the sun's apparent motions in the sky. The target may be a physical object, distant from the heliostat, or a direction in space, and is almost always stationary relative to the heliostat, so the light is reflected in a fixed direction. ==== Derived terms ==== heliostatic ==== Translations ==== === Anagrams === loathiest, thiolates == Romanian == === Etymology === Borrowed from French héliostat. By surface analysis, helio- +‎ -stat. === Noun === heliostat n (plural heliostate) heliostat ==== Declension ====