igneous

Science Dictionary
igneous   (ĭg'nē-əs)  Pronunciation Key 
  1. Relating to rocks or minerals formed by the cooling and hardening of magma or molten lava. Basalt and granite are examples of igneous rocks.

  2. Relating to the processes, such as volcanism, by which such rocks and minerals form.


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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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