helioscope
[hee-lee-uh-skohp]
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noun
a telescope for viewing the sun, adapted to protect the eye of the viewer from the sun's glare.
Nearby words
- heliometer,
- heliopause,
- heliophyte,
- heliopolis,
- helios,
- heliosphere,
- heliostat,
- heliotaxis,
- heliotherapy,
- heliotrope
Origin of helioscope
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for helioscope
To the "helioscope" employed by Father Scheiner two centuries and a quarter earlier, a species of micrometer was added.
A Popular History of Astronomy During the Nineteenth Century|Agnes M. (Agnes Mary) ClerkeA few words must here be said concerning the helioscope, which on more than one occasion played a prominent part in this war.
The Story of the Zulu Campaign|Waller Ashe