bathylith 1. A large mass of intrusive igneous rock believed to have solidified deep within the earth. 2. A large body of intrusive igneous rock believed to have crystallized at a considerable depth below the earth's surface; pluton. Found on http://www.wordinfo.info/words/index/info/view_unit/287/2
bathylith 1. A large mass of intrusive igneous rock believed to have solidified deep within the earth. 2. A large body of intrusive igneous rock believed to have crystallized at a considerable depth below the earth's surface; pluton.