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Origin of brainstorm

1890–95; brain + storm; originally a severe mental disturbance

OTHER WORDS FROM brainstorm

brainstormer, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use brainstorm in a sentence

British Dictionary definitions for brainstorm

brainstorm
/ (ˈbreɪnˌstɔːm) /

noun
a severe outburst of excitement, often as the result of a transitory disturbance of cerebral activity
British informal a sudden mental aberration
informal another word for brainwave
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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