lava

    Article

    Magma, or molten rock, rising in liquid form onto the earth's surface, usually by volcanic eruption. The term also applies to the solidified rock that is formed once molten lava has cooled.

    Photo Credit

     
    "Pahoehoe and Aa lava flows at the Big Island of Hawaii, September 25, 2014" by Brocken Inaglory is licensed under CC BY-SA.

    Term Type
    References

     
    Encyclopedia Britannica Online
         2013   lava. http://www.britannica.com/EBchecked/topic/332564/lava, accessed September
             25, 2014.