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"
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"
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"
explosively unstable; "a volcanic temper"
igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt
explosively unstable
relating to or produced by or consisting of volcanoes
