What does MARILYN mean in Military?

Marilyn

A Marilyn is a mountain or hill in the United Kingdom, Republic of Ireland or Isle of Man with a relative height of at least 150 metres, regardless of absolute height or other merit. The name was coined as a punning contrast to the designation Munro, used of a Scottish mountain with a height of more than 3,000 feet, which is homophonous with Monroe. There are 2,009 Marilyns identified: 1,216 in Scotland, 455 in Ireland, 176 in England, 157 in Wales, 5 on the Isle of Man. Black Mountain, in the Black Mountains, on the border between England and Wales, was formerly counted in both countries but is now treated as being in Wales only. The list of Marilyns in Britain was compiled by Alan Dawson in his book The Relative Hills of Britain, and continues to change as resurveying produces revised heights for hills and the passes between them. The list was extended into Ireland by Clem Clements in a booklet, The Hewitts and Marilyns of Ireland. Although many of the islands' largest hills including Ben Nevis, Carrantuohill, Scafell Pike and Snowdon are Marilyns, many other large hills such as Cairngorm, a number of Munros, and other well-known hills such as Bowfell, the Langdale Pikes and Carnedd Dafydd, are not Marilyns because they do not have sufficient relative height. However, some lower hills such as Seatallan and Watch Hill on the edges of Lakeland and the Long Mynd in Shropshire do qualify because of their isolation from higher hills. Not all of the Marilyns are even hills in the usual sense: one, the highest point of the Weald, lies within the East Sussex town of Crowborough, whilst the top of the Yorkshire Wolds, Bishop Wilton Wold lies alongside the A166 road. At the other extreme are Stac Lee and Stac an Armin, the two highest sea stacks in the British Isles, in the St Kilda archipelago, over 81 miles west of the Scottish mainland.

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