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brainstorm

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

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
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.

Online Etymology Dictionary, © 2010 Douglas Harper