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2017 Word of the Year

spectrohelioscope

[spek-troh-hee-lee-uh-skohp] /ˌspɛk troʊˈhi li əˌskoʊp/
noun
1.
a spectroheliograph.
2.
a similar instrument, used for visual instead of photographic observations.
Origin of spectrohelioscope
1925-1930
First recorded in 1925-30; spectro- + helio- + -scope
Related forms
spectrohelioscopic
[spek-troh-hee-lee-uh-skop-ik] /ˌspɛk troʊˌhi li əˈskɒp ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for spectrohelioscope

spectrohelioscope

/ˌspɛktrəʊˈhiːlɪəʊˌskəʊp/
noun
1.
an instrument, similar to the spectroheliograph, used for observing solar radiation at one particular wavelength
Derived Forms
spectrohelioscopic (ˌspɛktrəʊˌhiːlɪəʊˈskɒpɪk) 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
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