WHAT IS volcano DIFENATION
The definition of a volcano is a rupture in the Earth's crust where molten lava, hot ash, and gases from below the Earth’s crust escape into the air. Full Definition of VOLCANO. 1. : a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue; also: a hill or mountain composed wholly or in part of the ejected material. 2. : something of explosively violent potential. 1. : a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue; also: a hill or mountain composed wholly or in part of the ejected material. 2. : something of explosively violent potential. Full Definition of VOLCANO. 1. : a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue; also: a hill or mountain composed wholly or in part of the ejected material. 2. : something of explosively violent potential. See volcano defined for English-language learners. A volcano is a vent or chimney which transfers molten rock known as magma from depth to the Earth's surface. Magma erupting from a volcano is called lava and is the material which builds up the cone surrounding the vent. A volcano is active if it is erupting lava, releasing gas or generates seismic activity. An opening in the earth's crust from which lava, ash, and hot gases flow or are ejected during an eruption. b. A similar opening on the surface of another planet. 1  A usually cone-shaped mountain formed from the materials issuing from such an opening. Full Definition of VOLCANO. 1. : a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue; also: a hill or mountain composed wholly or in part of the ejected material. 1 A mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapour, and gas are or have been erupted from the earth’s crust. 1. An opening in the Earth's crust from which lava, ash, and hot gases flow or are thrown out during an eruption. 2. A usually cone-shaped mountain formed by the materials that flowed or were thrown out from such an opening. 1. volcano-a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt. vent. crack, scissure, cleft, crevice, fissure-a long narrow opening. eructation, extravasation, eruption - (of volcanos) pouring out fumes or lava (or a deposit so formed).
A volcano is a vent or chimney which transfers molten rock known as magma from depth to the Earth's surface. 