Definitions
1.nounA volcanic rock."The Ellesmere Island Volcanics are a Late Cretaceous volcanic group of volcanoes and lava flows in the Qikiqtaaluk Region of northern Ellesmere Island, Nunavut, Canada."
2.adjectiveOf or pertaining to a volcano or volcanoes"volcanic activity."
3.adjectiveProduced by a volcano, or, more generally, by igneous agencies
4.adjectiveChanged or affected by the heat of a volcano.
5.adjectiveReminiscent of a volcano; explosive, violent, full of suppressed anger, energy etc.