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 (ô-rŏj′ə-nē) also or·o·gen·e·sis (ôr′ə-jĕn′ĭ-sĭs)
The process of mountain formation, especially by a folding and faulting of the earth's crust.

or′o·gen′ic (ôr′ə-jĕn′ĭk) adj.
or′o·gen′i·cal·ly adv.


(ɒˈrɒdʒɪnɪ) or


(Geological Science) the formation of mountain ranges by intense upward displacement of the earth's crust, usually associated with folding, thrust faulting, and other compressional processes
orogenic, orogenetic adj
ˌoroˈgenically, ˌorogeˈnetically adv


(ɔˈrɒdʒ ə ni, oʊˈrɒdʒ-)

the process of mountain formation or upheaval.
or•o•gen•ic (ˌɔr əˈdʒɛn ɪk, ˌɒr ə-) adj.
orogenesis, orogeny - Orogenesis is the formation of mountains (Greek oros) and orogeny is the process by which mountains are formed.
See also related terms for mountains.


the process by which mountains are created. — orogenic, orogenetic, adj.
See also: Geology


A phase of mountain building.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.orogeny - the process of mountain formation (especially by the upward displacement of the earth's crust)
geologic process, geological process - (geology) a natural process whereby geological features are modified
References in periodicals archive ?
That owner, Geneva 2015 LLC, owns the Gander Mountain building, just to the south.
There is a wide variety of traps from those associated with normal faulting on the passive side of basins to complex fold-fault traps, where over-thrusting has resulted from mountain building at active basin margins.
PRO Group also named Welches Mountain Building Supply & PRO Hardware of Welches, Oregon, as the 2014 PRO Retailer of the Year.
It sits next to an existing Iron Mountain building and is configured to meet data security standards set for hospitals, credit card providers, the federal government and other big entities.
The online bidding for these scenic mountain building lots is now open, but will begin to close at 1 pm on Monday, July 14.
It governs the timetable of ocean formation and mountain building.
The researchers said much of the world's known gold was derived from quarts veins that were formed during geological periods of mountain building as long as three billion years ago.
Chapters build on previously introduced material and move from a definition of geology to Earth in the context of the universe, plate tectonics, minerals, types and processes of rock formation, earthquakes, mountain building, time and fossils, energy and mineral resources, types of water formations, deserts, glaciers, and global changes.
The geologists of Earth Sciences Division are also investigating the tectonics and other mountain building processes relating to uplifting of Himalayas and Karakoram Ranges and other mountains ranges of Pakistan.
In North America, extreme fluctuations of the inland Western Interior Sea and mountain building might have affected the evolution of dinosaurs in distinct ways from species on other continents.
Conventional wisdom states that the cessation of this mountain building episode will be brought about by the mountains themselves: once they reach a certain height, their weight will place so much force on the plate boundary that the plates will stop moving.
Canterbury's fertile plains are the result of millions of years of mountain building, glaciation and river action.