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aberrant

[ uh-ber-uhnt, ab-er- ]
/ əˈbɛr ənt, ˈæb ər- /
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See synonyms for: aberrant / aberrants / aberrance / aberrancy on Thesaurus.com

adjective

departing from the right, normal, or usual course.
deviating from the ordinary, usual, or normal type; exceptional; abnormal.

noun

an aberrant person, thing, group, etc.

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Origin of aberrant

First recorded in 1820–30, aberrant is from the Latin word aberrant- (stem of aberrāns, present participle of aberrāre to deviate). See ab-, errant
ab·er·rance, ab·er·ran·cy, nounab·er·rant·ly, adverb
aberrant , abhorrent
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for aberrant

aberrant
/ (æˈbɛrənt) /

adjective

deviating from the normal or usual type, as certain animals from the group in which they are classified
behaving in an abnormal or untypical way
deviating from truth, morality, etc
aberrance or aberrancy, noun
rare before c19: from the present participle of Latin aberrāre to wander away
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

Medical definitions for aberrant

aberrant
[ ă-bĕrənt, ăbər- ]

adj.

Deviating from the usual course, as certain ducts, vessels, or nerves.
Deviating from the normal; untrue to type.
Out of place; ectopic.
ab•erran•cy n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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