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A historical region of southeast Ireland. Its wealth and accessibility made it an early prey to Danish and Anglo-Norman invasions.
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) a province of E and SE Republic of Ireland: it consists of the counties of Carlow, Dublin, Kildare, Kilkenny, Laois, Longford, Louth, Meath, Offaly, Westmeath, Wexford, and Wicklow. Pop: 2 105 579 (2002). Area: 19 632 sq km (7580 sq miles)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈlɛn stər)

a province in the E Republic of Ireland. 1,851,134; 7576 sq. mi. (19,620 sq. km).
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in classic literature ?
In the Book of the Dun Cow, and in another old book called the Book of Leinster, there is written the great Irish legend called the Tain Bo Chuailgne or the Cattle Raid of Cooley.
Ryan (Leinster), Iain Toner (Leinster), O'Mahony (Munster), CJ Conan (Leinster), Josh Jordi Murphy (Ulster).
CARDIFF Blues A will kick-off their season with a home clash against the reigning champions Leinster A when the Celtic Cup starts on the weekend of 23-25 August.
Ireland: R Kearney (Leinster); K Earls (Munster), C Farrell (Munster), B Aki (Connacht), J Stockdale (Ulster); J Sexton (Leinster), C Murray (Munster); C Healy (Leinster), R Best (Ulster, capt), T Furlong (Leinster), J Ryan (Leinster), Q Roux (Connacht), P O'Mahony (Munster), S O'Brien (Leinster), J Conan Leinster).
KEITH EARLS wrapped up a deserved victory for Munster over arch rivals Leinster in a bad-tempered encounter at Thomond Park.
HOLDERS Leinster gained a priceless away victory and severely dented Bath's Heineken Champions Cup hopes by claiming an intense 17-10 victory at the Recreation Ground.
BAtH 10 LEINSTER 17 HOLDERS Leinster gained a priceless away victory and severely dented Bath's Heineken Champions Cup hopes in an intense clash at the Recreation Ground.
Furlong and Henderson are both nursing hamstring issues, leaving rookie Leinster duo Ryan and Porter tasked with shoring up the hosts' scrum.
WASPS clawed back a 14-point deficit but couldn't deny threetime European champions Leinster top spot in Pool Two and an automatic place in the last eight.
LEINSTER v ULSTER rTe2 & bbc2 Ni, 7pm LEINSTER struggled to stretch clear of 14-man Ulster in their meeting at Ravenhill two weeks ago and the 6-4 about the Pro12 champions and regular-season winners triumphing by one to 12 points appeals, writes Max Oram.
The other gaps in the party are expected to be filled by Connacht prop Brett Wilkinson and Leinster scrum-half Isaac Boss.