Plural of anticline . In geology, it is a fold of the Earth's crust that has the oldest strata in its core. ?? They are formed by tectonic effects. A class of stratum of the earth's crust .
Plural of anticline ("geological fold in a terrain") .
It is the name given the layers of the Earth's crust when they fold in u-shape, or v, with the angle up and the part open down.