spectrohelioscope
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spec·tro·he·li·o·scope
(spĕk′trō-hē′lē-ə-skōp′)n.
An instrument that combines a solar telescope and a spectroscope and is used to observe a narrow band of solar radiation.
spec′tro·he′li·o·scop′ic (-skŏp′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
spectrohelioscope
(ˌspɛktrəʊˈhiːlɪəʊˌskəʊp)n
(General Physics) an instrument, similar to the spectroheliograph, used for observing solar radiation at one particular wavelength
spectrohelioscopic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
spec•tro•he•li•o•scope
(ˌspɛk troʊˈhi li əˌskoʊp)n.
an apparatus, similar to a spectroheliograph, used for visual instead of photographic observations.
[1925–30]
spec`tro•he`li•o•scop′ic (-ˈskɒp ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.