anticlinorium

noun, plural an·ti·cli·no·ri·a [an-ti-klahy-nawr-ee-uh, –nohr-] /ˌæn tɪ klaɪˈnɔr i ə, -ˈnoʊr-/. Geology.

1. a compound anticline, consisting of a series of subordinate anticlines and synclines, the whole having the general contour of an arch.

noun plural -noria (-ˈnɔːrɪə)

1. a vast elongated anticline with its strata further folded into anticlines and synclines