A vent or fissure on the surface of a planet (usually in a mountainous form) with a magma chamber attached to the mantle of a planet or moon, periodically erupting forth lava and volcanic gases onto the surface.

to erupt; to burst forth

plural of volcano

plural of volcano

Misspelling of volcano.

Alternative form of volcanism

A census-designated place in Amador County, California, United States.

(geology) A volcano that has not erupted for a considerable length of time, but is still capable of erupting.

(volcanology, geology) A volcano that has erupted in the last 10,000 years, although not necessarily venting lava or gases now.

(volcanology, geology) A conical structure formed by the eruption of rock fragments and wet mud along with hot gases.