The Collaborative International Dictionary
Volcanic neck
Volcanic neck \Vol*can"ic neck\ (Geol.) A column of igneous rock formed by congelation of lava in the conduit of a volcano and later exposed by the removal of surrounding rocks.
Wikipedia
Volcanic neck
- Redirect Volcanic plug
Usage examples of "volcanic neck".
Ahead loomed a jut of rock: an ancient volcanic neck, so Reith surmised.
It's an old volcanic neck, it's the grand-daddy of all diamond mines.
Clouds drifted across the sky, almost scraping a cluster of crags, the remnants of an ancient volcanic neck.