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volcanic
DEFINITIONS OF:
volcanic
1
adj
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”
Synonyms
extrusive
of rock material; forced out while molten through cracks in the earth's surface
adj
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”
adj
explosively unstable
“a
volcanic
temper”
Synonyms
unstable
lacking stability or fixity or firmness
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