Definition of orthogeosyncline in English:

orthogeosyncline

noun

Geology
rare
  • A linear geosyncline situated between a continental and an oceanic craton, typically comprising a miogeosyncline and an adjacent eugeosyncline.

Origin

1930s; earliest use found in Bulletin of the American Association of Petroleum Geologists. From ortho- + geosyncline, after German Orthogeosynklinale.

Pronunciation

orthogeosyncline

/ˌɔːθə(ʊ)dʒiːə(ʊ)ˈsɪŋklʌɪn/