heliocentric

adjective

he·​lio·​cen·​tric ˌhē-lē-ō-ˈsen-trik How to pronounce heliocentric (audio)
1
: referred to or measured from the sun's center or appearing as if seen from it
2
: having or relating to the sun as center compare geocentric

Example Sentences

Galileo proposed the heliocentric theory that the Earth goes around the sun.
Recent Examples on the Web Think of the difference between medieval astronomy and astronomy after the Copernican Revolution, which changed our understanding of the universe from being a geocentric to a heliocentric one. Ira Bedzow, Forbes, 6 May 2022 The heliocentric speed is defined as the meteor’s speed relative to the sun, which is a more accurate way to determine an object’s orbit. Megan Marples, CNN, 13 Apr. 2022 Of course, there's also the matter of Young's role in this, as the Hawks are playing a near heliocentric system around him. Morten Jensen, Forbes, 18 Jan. 2022 Typically, during interplanetary missions, a rocket's upper stage is sent into a heliocentric orbit, keeping it away from the Earth and its Moon. Eric Berger, Ars Technica, 24 Jan. 2022 Indiana lacks a heliocentric offensive focal point, and Carlisle expects different players to lead the team in scoring throughout the season. Andy Yamashita, The Indianapolis Star, 6 Nov. 2021 This heliocentric theory violated the prevailing belief dating back to Aristotle and engrained in Christian theology that the sun and planets rotate around a stationary earth. Joel Zinberg, National Review, 9 June 2021 Unfortunately, the geocentric predictions were more accurate — with fewer and smaller observational discrepancies — than the heliocentric model. Ethan Siegel, Forbes, 10 Mar. 2021 When the inquisition required him to drop his study of what the Roman Catholic Church insisted was not a heliocentric solar system, Galileo Galilei turned his energy to the less controversial question of how to stick a telescope onto a helmet. Alex Davies, Wired, 6 Jan. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heliocentric.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1685, in the meaning defined at sense 1

Time Traveler
The first known use of heliocentric was in 1685

Dictionary Entries Near heliocentric

Cite this Entry

“Heliocentric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heliocentric. Accessed 29 Nov. 2022.

Kids Definition

heliocentric

adjective

he·​lio·​cen·​tric ˌhē-lē-ō-ˈsen-trik How to pronounce heliocentric (audio)
1
: referred to or measured from the sun's center or appearing as if seen from it
2
: having or relating to the sun as a center
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