ALL meanings of geosynclinal
ge·o·syn·cli·nal
G g - adjective geosynclinal Geology. pertaining to a synclinal fold that involves a relatively large part of the earth's surface. 1
- noun geosynclinal (geology) The downward bend or subsidence of the Earth's crust, which permits the gradual accumulation of sediment and hence forms the first step in the formation of a mountain range. 1