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Consult Chambers 21st Century Dictionary, The Chambers Thesaurus (1996) or Chambers Biographical Dictionary (1997 edition with amendments). Enter your search and choose your title from the drop-down menu.

Search results for 'brainstorm':

brainstorm noun 1 colloq a sudden loss of the ability to think clearly and act properly or sensibly; a mental aberration. 2 N Amer colloq a brainwave 1.
ETYMOLOGY: 19c, meaning 'a sudden violent disturbance of the mind'.