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Definition |
someone who is highly intelligent or
knowledgeable |
Examples |
1) Carey is such a Brainiac; she
always has the answer to every trivia question.
2) Everyone in the physics department admires Elon; he's a real
Brainiac when it comes to
understanding quantum mechanics. |
Etymology |
"brain" (referring to intelligence) and
"maniac" (referring to someone who is obsessed or fanatical about
something) |
Synonyms |
whiz, genius |
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