volcanic

Definition of volcanic in English English dictionary: Of or pertaining to a volcano or volcanoes; as, volcanic heat; Changed or affected by the heat of a volcano; Potentially or powerfully explosive; Produced by a volcano, or, more generally, by igneous agencies; as, volcanic tufa; {i} lever-action repeating pistol produced by the Smith and Wesson Company in 1852; Volcanic means coming from or created by volcanoes. Over 200 people have been killed by volcanic eruptions. relating to or caused by a volcano; igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt; "volcanic rock includes the volcanic glass obsidian"; {s} of or pertaining to volcanoes; eruptive; Applies to igneous rocks that cool on the surface of the Earth, including beneath water; typically with small crystals due to the rapidity of cooling Synonym of extrusive Antonym of plutonic; rock from molten lava; explosively unstable; "a volcanic temper" relating to or produced by or consisting of volcanoes; "volcanic steam"; "volcanic islands such as Iceland"; "a volcanic cone is a conical mountain or hill built up of material from volcanic eruptions; Of, pertaining to, like, or characteristic of a volcano; characterized by or composed of volcanoes; produced, influenced, or changed by a volcano or by volcanic agencies; made of materials derived from volcanoes; made up of material from a volcano; Of or like a volcano; explosively unstable; "a volcanic temper"; relating to or produced by or consisting of volcanoes; "volcanic steam"; "volcanic islands such as Iceland"; "a volcanic cone is a conical mountain or hill built up of material from volcanic eruptions; volcanian; vulcanian
volcanic sulfur: Alternative spelling of volcanic sulphur
volcanic sulphur: Naturally occuring elemental sulfur as deposited at the fumarole of a volcano
volcanic action: activity of a volcano, thundering and erupting of a volcano; activity which is volcano-like
volcanic arc: A usually arc-shaped chain of volcanoes located on the margin of the overriding plate at a convergent plate boundary
volcanic crater: a bowl-shaped opening at the top of a volcano
volcanic eruption: the sudden occurrence of a violent discharge of steam and volcanic material
volcanic glass: a kind of natural glass produced when molten lava cools very rapidly
volcanic glass: Natural glass produced by the cooling of molten lava too quickly to permit crystallization. Any glassy rock formed from lava or magma that has a chemical composition close to that of granite. Such molten material may reach very low temperatures without crystallizing, but its viscosity may become very high. Because high viscosity inhibits crystallization, the combination of sudden cooling and loss of volatiles, as when lava extrudes from a volcanic vent, tends to chill the material to a glass rather than crystallize it
volcanic neck: A column of igneous rock formed by congelation of lava in the conduit of a volcano and later exposed by the removal of surrounding rocks
volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth
volcanic wind: A wind associated with a volcanic outburst and due to the eruption or to convection currents over hot lava
lassen volcanic national park: a national park in California having mountains and volcanic lakes and hot springs
volcanically: Like a volcano
volcanically: by or like volcanoes; "volcanically created landscape
volcanically: in a volcanic manner; explosively