• synonyms


  1. Physical Geography. a residual hill or mountain standing well above the surface of a surrounding peneplain.
  2. (initial capital letter) Mount, a mountain peak in SW New Hampshire. 3186 feet (971 meters).
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Origin of monadnock

1735–45, Americanism; after (Grand) Monadnock (earlier name of Mount Monadnock) < a S New England Algonquian name, literally, isolated mountain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for monadnock

Historical Examples

  • Another of the monitors, the "Monadnock," was added to the navy in 1896.

    The Naval History of the United States

    Willis J. Abbot.

  • Far to the northwest rise bluely the three peaks of Monadnock.

    John Greenleaf Whittier

    W. Sloane Kennedy

  • The spot where only that morning the Monadnock had lain in idle calm was empty.


    Ferdinand Heinrich Grautoff

  • The explosion of the Monadnock had at first been regarded as an accident.


    Ferdinand Heinrich Grautoff

  • A similar monitor, the Monadnock, has been launched in California.

British Dictionary definitions for monadnock


  1. a residual hill that consists of hard rock in an otherwise eroded area
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Word Origin

C19: named after Mount Monadnock, in New Hampshire
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

monadnock in Science


  1. A mountain or rocky mass that has resisted erosion and stands isolated in an essentially level area.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.