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Pon·tine Marshes(pŏn′tēn, -tīn)
An area of central Italy between the Tyrrhenian Sea and the Apennine foothills. Formerly a malarial breeding ground, the land was drained during the 1930s to produce fertile farmland.
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.
(Placename) an area of W Italy, southeast of Rome: formerly malarial swamps, drained in 1932–34 after numerous attempts since 160 bc had failed. Italian name: Agro Pontino
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Pon′tine Marsh′es(ˈpɒn tin, -taɪn)
an area in W Italy, SE of Rome: formerly marshy, now drained.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.