geosyncline

noun

geo·​syn·​cline ˌjē-ō-ˈsin-ˌklīn How to pronounce geosyncline (audio)
: a great downward flexure of the earth's crust
geosynclinal
ˌjē-ō-ˌsin-ˈklī-nəl How to pronounce geosyncline (audio)
adjective

Word History

First Known Use

1895, in the meaning defined above

Time Traveler
The first known use of geosyncline was in 1895

Rhymes for geosyncline

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Browse Nearby Words

geosynchronous
geosyncline
geotactic
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Cite this Entry

“Geosyncline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geosyncline. Accessed 3 May. 2025.

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