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helioscope

[hee-lee-uh-skohp] /ˈhi li əˌskoʊp/
noun
1.
a telescope for viewing the sun, adapted to protect the eye of the viewer from the sun's glare.
Origin of helioscope
1665-1675
First recorded in 1665-75; helio- + -scope
Related forms
helioscopic
[hee-lee-uh-skop-ik] /ˌhi li əˈskɒp ɪk/ (Show IPA),
adjective
helioscopy
[hee-lee-os-kuh-pee] /ˌhi liˈɒs kə pi/ (Show IPA),
noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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