Petrified Forest
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Pet·ri·fied Forest
(pĕt′rə-fīd′) A section of the Painted Desert in eastern Arizona containing stonelike trees dating from the Triassic Period.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Petrified Forest
n
(Placename) a national park in E Arizona, containing petrified coniferous trees about 170 000 000 years old
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014