Jekyll and Hyde

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈdʒɛkəl/, /haɪd/US:USA pronunciation: respellingUSA pronunciation: respelling( jekəl, jēkəl)

WordReference Random House Unabridged Dictionary of American English © 2020
Jekyll and Hyde  ( jekəl, jēkəl),USA pronunciation 
  • 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)

    Collins Concise English Dictionary © HarperCollins Publishers::
    Jekyll and Hyde /ˈdʒɛkəl; haɪd/ n
    1. a person with two distinct personalities, one good, the other evil
    2. (as modifier): a Jekyll-and-Hyde personality
    Etymology: 19th Century: after the principal character of Robert Louis Stevenson's novel The Strange Case of Dr Jekyll and Mr Hyde (1886)

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