Jekyll and Hyde

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Je·kyll and Hyde

 (jĕk′əl, jē′kəl; hīd′)
n. Informal
One who has a dual personality that alternates between phases of good and evil behavior.

[After The Strange Case of Dr. Jekyll and Mr. Hyde, by Robert Louis Stevenson.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Jekyll and Hyde

(ˈdʒɛkəl; haɪd)
n
(Psychology)
a. a person with two distinct personalities, one good, the other evil
b. (as modifier): a Jekyll-and-Hyde personality.
[C19: after the principal character of Robert Louis Stevenson's novel The Strange Case of Dr Jekyll and Mr Hyde (1886)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

Jek′yll and Hyde′

(ˈdʒɛk əl, ˈdʒi kəl)
n.
a person marked by dual personality, one aspect of which is good and the other bad.
[after the protagonist of Robert Louis Stevenson's The Strange Case of Dr. Jekyll and Mr. Hyde (1886)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Jekyll and Hyde - someone with two personalities - one good and one evil
unusual person, anomaly - a person who is unusual
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

Jekyll and Hyde

n a Jekyll and Hyde (character)eine Art Jekyll und Hyde
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in periodicals archive ?
It's not long before Mick has joined in with the banter, but when he pinches his old mate's phone as a joke, Stuart's Jekyll and Hyde personality comes out again.
Scollay's defence agent described him as 'somewhat of a Jekyll and Hyde personality
AS far as the New Labour spin doctors are concerned, Cherie Blair has a Jekyll and Hyde personality. If she is a good girl doing charity work or anything that helps to promote Tony's image, she is Mrs Blair, wife of the British Prime Minister.