geosynchronous

adjective

geo·​syn·​chro·​nous ˌjē-ō-ˈsiŋ-krə-nəs How to pronounce geosynchronous (audio)
-ˈsin-
: being or having an orbit around the earth with a period equal to one sidereal day
specifically : geostationary

Examples of geosynchronous in a Sentence

Recent Examples on the Web
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The first-stage booster made a successful 21st liftoff, but was expended to get the satellite to a geosynchronous transfer orbit. Richard Tribou, The Orlando Sentinel, 19 Jan. 2026 The startup aims to launch satellites into geosynchronous orbit (GEO). Chris Young, Interesting Engineering, 13 Jan. 2026 The 10,580-pound (4,800-kilogram) Michibiki 5 will be part of the Quasi-Zenith Satellite System (QZSS), Japan's homegrown navigation network in geosynchronous orbit. Mike Wall, Space.com, 16 Dec. 2025 Subsequently, the company hopes to begin delivering power from higher up at geosynchronous orbit by 2030. Abhimanyu Ghoshal, New Atlas, 14 Dec. 2025 See All Example Sentences for geosynchronous

Word History

First Known Use

1968, in the meaning defined above

Time Traveler
The first known use of geosynchronous was in 1968

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Cite this Entry

“Geosynchronous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geosynchronous. Accessed 25 Jan. 2026.

Last Updated: - Updated example sentences
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