geosynclineWiktionary 原文英/dʒiːəʊˈsɪŋklʌɪn/美词源说明Back-formation from geosynclinal.释义名词noun1(dated, geology) A large, linear depression in the Earth's crust in which sediment accumulates.同族词派生词 7autogeosyncline·eugeosyncline·geosynclinal·miogeocline·miogeosyncline·orthogeosyncline·parageosyncline