RIA(redirected from Rías)
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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.
(Physical Geography) a long narrow inlet of the seacoast, being a former valley that was submerged by a rise in the level of the sea. Rias are found esp on the coasts of SW Ireland and NW Spain
[C19: from Spanish, from rio river]
(Education) Royal Irish Academy
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
A drowned river valley, forming a long, narrow, funnelshaped inlet at right angles to the sea.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited