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lava

DEFINITIONS OF: lava

1

n rock that in its molten form (as magma) issues from volcanos; lava is what magma is called when it reaches the surface

Types:
aa
a dry form of lava resembling clinkers
pahoehoe
freely flowing lava
pillow lava
lava that hardened in rounded shapes suggestive of pillows; believed to result from underwater eruptions
Type of:
volcanic rock
extrusive igneous rock solidified near or on the surface of the Earth
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