spectrohelioscope

noun

spec·​tro·​he·​lio·​scope ˌspek-trō-ˈhē-lē-ə-ˌskōp How to pronounce spectrohelioscope (audio)
1
2
: an instrument similar to a spectroheliograph used for visual as distinguished from photographic observations

Word History

Etymology

International Scientific Vocabulary

First Known Use

1906, in the meaning defined at sense 1

Time Traveler
The first known use of spectrohelioscope was in 1906

Dictionary Entries Near spectrohelioscope

Cite this Entry

“Spectrohelioscope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spectrohelioscope. Accessed 17 Jul. 2024.

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