Definify.com
Webster 1913 Edition
Heliostat
He′li-o-stat
,Noun.
[
Helio-
+ Gr. [GREEK] placed, standing, fr. [GREEK] to place, stand: cf. F. héliostate
.] 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.
Definition 2024
Heliostat
Heliostat
See also: heliostat
heliostat
heliostat
See also: Heliostat
English
A heliostat. In this case and most others, the mirror rotates on a computer-controlled, motor-driven alt-azimuth mount.
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.
Translations
device to continuously reflect sunlight toward a predetermined target, almost always in some fixed direction, despite the sun's motions in the sky
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