Definition of "volcanic" in English

adjective

1. Of or pertaining to a volcano or volcanoes.

   • volcanic heat
   • volcanic activity

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

   • volcanic tufa
   • volcanic ash

3. Changed or affected by the heat of a volcano.

4. (figurative) Reminiscent of a volcano; explosive, violent, full of suppressed anger, energy etc.

noun

1. A 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.