Meanings
noungeosyncline (plural geosynclines)
plural geosynclines
- datedgeographyA large, linear depression in the Earth's crust in which sediment accumulates.
Forty years ago the crumpled and complex Mobile Belt of Newfoundland would have been considered a typical result of a deformed geosyncline.
2004, Richard Fortey, The Earth, Folio Society, published 2011, page 173
Origin
Back-formation from geosynclinal.
Full word history & related roots →Cite this entry
APA
geosyncline. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/geosyncline
MLA
“geosyncline.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/geosyncline. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “geosyncline,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/geosyncline.
Source: geosyncline on Wiktionary, CC BY-SA 4.0.