he·​lio·​graph·​ic ˌhē-lē-ə-ˈgra-fik How to pronounce heliographic (audio)
: measured on the sun's disk
heliographic latitude

Word History

First Known Use

1706, in the meaning defined above

Time Traveler
The first known use of heliographic was in 1706

Dictionary Entries Near heliographic

Cite this Entry

“Heliographic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heliographic. Accessed 25 Apr. 2024.

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