1. Plural of geanticline; large-scale upwarps or anticlines in the Earth's crust, typically formed during mountain-building processes and spanning continental or subcontinental areas.
Usage: geology; technical term; plural form

Examples

• The geanticlines of the Rocky Mountains were formed during the Laramide Orogeny.
• Geologists study geanticlines to understand the structural history of continental plates.
• Major geanticlines often contain valuable mineral and petroleum deposits.
• The Appalachian geanticlines reveal evidence of ancient tectonic activity.
• Seismic surveys help identify geanticlines beneath the Earth's surface.