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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 'piston':

piston noun 1 engineering a cylindrical device that moves up and down in the cylinder of a petrol, diesel or steam engine. 2 a sliding valve on a brass wind instrument.
ETYMOLOGY: 18c: French, from Italian pistone, from pestare to pound.