Jekyll and Hyde
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Je·kyll and Hyde(jĕk′əl, jē′kəl; hīd′)
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.]
Jekyll and Hyde(ˈdʒɛkəl; haɪd)
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)]
Jek′yll and Hyde′(ˈdʒɛk əl, ˈdʒi kəl)
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)]