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spectroheliogram

[spek-troh-hee-lee-uh-gram]
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noun
  1. a photograph of the sun made with a spectroheliograph.
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Origin of spectroheliogram

First recorded in 1905–10; spectro- + heliogram
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018