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spectroheliogram

American

[spek-troh-hee-lee-uh-gram] / ˌspɛk troʊˈhi li əˌgræm /

noun

a photograph of the sun made with a spectroheliograph.

Etymology

Origin of spectroheliogram

First recorded in 1905–10; spectro- + heliogram

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.