brainiac

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English

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Etymology

Blend of brain +‎ maniac, with influence from ENIAC, the name of an early computer. The term was coined in the Superman comic book and first appeared in Action Comics #242 in July, 1958.

Pronunciation

Noun

brainiac (plural brainiacs)

  1. (slang, sometimes derogatory) A very intelligent and usually studious, erudite person.
    Synonyms: genius, pedant, smart-ass, wiseguy
    Antonyms: dufus, dumb-ass, dumbo, idiot, ignoramus
    • 2009 July 18, Tom Armstrong, Marvin (comic):
      With all the brainiacs in the world ... you'd think somebody would come up with a sunblock for ice cream.
    • 2019 February 8, Margaret Wertheim, “Minds that explore the beauty of math and the logic of art”, in Washington Post, →ISSN:
      With nearly 900,000 Twitter followers, Popova is a member of a rare pantheon of “influencers” for the brainiac crowd. Miraculously, she makes a living writing a blog about science, literature, philosophy, feminism and whatever else takes her voracious and generous fancy.

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