O1R1O1G2E1N1S1
8 points
OROGENS is validvalid
OROGEN, a belt of the earth's crust involved in orogeny [n]
OROGEN, an orogenic belt, a mountain-forming area [n]
OROGEN, a belt of the earth's crust involved in orogeny [n]
OROGEN, an orogenic belt, a mountain-forming area [n]