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The collection of regions in Ireland where Irish Gaelic is spoken as a native language.
[Irish Gaelic, from Gael, a Gael; see Gael.]
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) any of the regions in Ireland in which Irish Gaelic is the vernacular speech. The form Gaeltacht is sometimes also used to mean the region of Scotland in which Scottish Gaelic is spoken. See also Gaidhealtachd
[C20: from Irish Gaelic]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014