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[ab-nawr-mal-i-tee] /ˌæb nɔrˈmæl ɪ ti/
noun, plural abnormalities.
an abnormal condition, state, or quality; irregularity; deviation.
an abnormal thing or event.
Also, abnormalcy.
Origin of abnormality
1850-55; abnormal + -ity
anomaly, aberration, peculiarity, oddity, idiosyncrasy. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for abnormality
Contemporary Examples
Historical Examples
  • Something odd in the set of the Queen's sails puzzled him until he identified the abnormality.

    Traders Risk Roger Dee
  • I thought the child was a freak, an abnormality; and such things disgust me.

    The Wonder J. D. Beresford
  • He fancied that from what Richard had said that Anne would be the antidote for his daughter's abnormality.

    Mistress Anne Temple Bailey
  • That would have been an abnormality calling for investigation.

    Eight Keys to Eden Mark Irvin Clifton
  • He gave no reason to anyone for suspecting him of abnormality.

    Gladiator Philip Wylie
British Dictionary definitions for abnormality


noun (pl) -ties
an abnormal feature, event, etc
a physical malformation; deformity
deviation from the typical or usual; irregularity
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
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Word Origin and History for abnormality

"quality of being abnormal," 1854; "abnormal feature or quality," 1859, from abnormal + -ity. Earlier as abnormity (1731).

Online Etymology Dictionary, © 2010 Douglas Harper
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abnormality in Medicine

abnormality ab·nor·mal·i·ty (āb'nôr-māl'ĭ-tē)
An anomaly, malformation, or difference from the normal.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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