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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One that is monstrous.
  • n. The quality or character of being monstrous.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A plant or animal showing abnormal development or deformity.
  • n. A monstrous thing, person or act.
  • n. The state of being monstrous.

from the GNU version of the Collaborative International Dictionary of English

  • n. The state of being monstrous, or out of the common order of nature; that which is monstrous; a monster.

from The Century Dictionary and Cyclopedia

  • n. The state or character of being monstrous, or formed out of the common order of nature; the character of being shocking or horrible.
  • n. An unnatural production; a monster.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. something hideous or frightful
  • n. a person or animal that is markedly unusual or deformed


Middle English monstruosite, from Old French, from Late Latin mōnstrōsitās, from Latin mōnstruōsus, monstrous; see monstrous.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Late Latin monstrositas ("monstrousness"), from Latin monstrōsus. (Wiktionary)



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  • The first time I stumbled across the word was when listening to Queen's Bohemian Rhapsody :)

    January 19, 2008