noun mio·geosyncline \¦mī(ˌ)ō+\

Definition of miogeosyncline

  1. :  a comparatively stable geosyncline in which sediments accumulate without contemporaneous volcanism — compare eugeosyncline

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Origin and Etymology of miogeosyncline

International Scientific Vocabulary mi- + geosyncline

Seen and Heard

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feeling or affected by lethargy

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