Brainiac
//ˈbɹeɪniæk//
"Brainiac" in a Sentence (3 examples)
Where's that brainiac?
With all the brainiacs in the world ... you'd think somebody would come up with a sunblock for ice cream.
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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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.