Massif

A massif (/mæˈsiːf, ˈmæsɪf/) is a principal mountain mass,[1] such as a compact portion of a mountain range, containing one or more summits (e.g. France's Massif Central).

As a purely scientific term in geology, however, a "massif" is separately and more specifically defined as a section of a planet's crust that is demarcated by faults or flexures.

In the movement of the crust, a massif tends to retain its internal structure while being displaced as a whole.

A massif is a smaller structural unit than a tectonic plate and is considered the fourth-largest driving force in geomorphology.

[2] The word "massif" originates from French (in which the word also means "massive"), where it is used to refer to a large mountain mass or compact group of connected mountains forming an independent portion of a range.