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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
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 The startup is developing large solar arrays for geosynchronous orbit (GEO). Chris Young, Interesting Engineering, 11 Dec. 2025 New Glenn is more than 320 feet tall, partially reusable and capable of delivering payloads to low, medium and geosynchronous orbits. Matthew Glasser, ABC News, 8 Nov. 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 31 Dec. 2025.

Last Updated: - Updated example sentences
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