geosyncline
noun
geo·syn·cline
| \ ˌjē-ō-ˈsin-ˌklīn
\
\
Definition of geosyncline
: a great downward flexure of the earth's crust
Other Words from geosyncline
geosynclinal
\ ˌjē-ō-ˌsin-ˈklī-nəl
\
adjective
\
adjective
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