heliostat

[ hee-lee-uh-stat ]
/ ˈhi li əˌstæt /

noun

an instrument consisting of a mirror moved by clockwork, for reflecting the sun's rays in a fixed direction.

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Origin of heliostat

From the New Latin word heliostata, dating back to 1740–50. See helio-, -stat

OTHER WORDS FROM heliostat

he·li·o·stat·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for heliostat

British Dictionary definitions for heliostat

heliostat
/ (ˈhiːlɪəʊˌstæt) /

noun

an astronomical instrument used to reflect the light of the sun in a constant direction

Derived forms of heliostat

heliostatic, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012