merestone

from WordNet (r) 3.0 (2006)

merestone
    n 1: an old term for a landmark that consisted of a pile of
         stones surmounted by an upright slab [syn: {merestone},
         {meerestone}, {mearstone}]

from The Collaborative International Dictionary of English v.0.48

Merestone \Mere"stone`\, n.
   A stone designating a limit or boundary; a landmark. --Bacon.
   [1913 Webster]

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