volcanic

Of, resembling, or caused by a volcano or volcanoes.

Produced by or discharged from a volcano.

Characterized by the presence of volcanoes.

Powerfully explosive.

In petrography, a volcanic rock: generally used in the plural.

Pertaining to or produced by volcanoes or volcanic action: as, volcanic heat, volcanic rock, volcanic phenomena, etc.

Of or pertaining to a volcano or volcanoes.

Produced by a volcano, or, more generally, by igneous agencies.

Changed or affected by the heat of a volcano.

a mass ejected from a volcano, often of molten lava having a rounded form.