Jisho

×
Wikipedia definition
1. Volcanic plugA volcanic plug, also called a volcanic neck or lava neck, is a volcanic landform created when magma hardens within a vent on an active volcano. When forming, a plug can cause an extreme build-up of pressure if volatile-charged magma is trapped beneath it, and this can sometimes lead to an explosive eruption. If a plug is preserved, erosion may remove the surrounding rock while the erosion-resistant plug remains, producing a distinctive upstanding landform.
Read “Volcanic plug” on English Wikipedia
Read “岩頸” on Japanese Wikipedia
Read “Volcanic plug” on DBpedia

Discussions

to talk about this word.