noun orogeny A process in which a section of the earth's crust is folded and deformed by lateral compression to form a mountain range. 1
noun orogeny the formation of mountain ranges by intense upward displacement of the earth's crust, usually associated with folding, thrust faulting, and other compressional processes 0
noun orogeny the formation of mountains through structural disturbance of the earth's crust, esp. by folding and faulting 0
