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spectrohelioscope

[spek-troh-hee-lee-uh-skohp]
noun
  1. a spectroheliograph.
  2. a similar instrument, used for visual instead of photographic observations.

Origin of spectrohelioscope

First recorded in 1925–30; spectro- + helio- + -scope
Related formsspec·tro·he·li·o·scop·ic [spek-troh-hee-lee-uh-skop-ik] /ˌspɛk troʊˌhi li əˈskɒp ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for spectrohelioscope

spectrohelioscope

noun
  1. an instrument, similar to the spectroheliograph, used for observing solar radiation at one particular wavelength
Derived Formsspectrohelioscopic (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