形容词

1. 火山的;由火山引发的
Volcanic means coming from or created by volcanoes.

1. igneous rock produced by eruption and solidified on or near the earth's surface
rhyolite or andesite or basalt

e.g. volcanic rock includes the volcanic glass obsidian

2. explosively unstable

e.g. a volcanic temper

3. relating to or produced by or consisting of volcanoes

e.g. volcanic steam
volcanic islands such as Iceland
a volcanic cone is a conical mountain or hill built up of material from volcanic eruptions