spectroheliogram

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

noun

a photograph of the sun made with a spectroheliograph.

Origin of spectroheliogram

First recorded in 1905–10; spectro- + heliogram
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020