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brainstorm

[breyn-stawrm]
noun
    1. a sudden impulse, idea, etc.
    2. a fit of mental confusion or excitement.
  1. brainstorming.
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adjective
  1. of or relating to brainstorming.
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verb (used without object)
  1. to conduct or practice brainstorming.
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verb (used with object)
  1. to subject (a problem) to brainstorming.
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Origin of brainstorm

1890–95; brain + storm; originally a severe mental disturbance
Related formsbrain·storm·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for brainstormer

brainstorm

noun
  1. a severe outburst of excitement, often as the result of a transitory disturbance of cerebral activity
  2. British informal a sudden mental aberration
  3. informal another word for brainwave
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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

Word Origin and History for brainstormer

brainstorm

n.

"brilliant idea, mental excitement, fit of mental application," 1849, from brain (n.) + figurative use of storm (n.). As a verb, recorded from 1920s. Related: Brainstormed; brainstorming.

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Online Etymology Dictionary, © 2010 Douglas Harper