Definition of mass adjective from the Oxford Advanced Learner's Dictionary

  

mass

 adjective
adjective
BrE BrE//mæs//
 
; NAmE NAmE//mæs//
 
 
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 [only before noun] affecting or involving a large number of people or things mass unemployment/production weapons of mass destruction Their latest product is aimed at the mass market. see also mass-market Word Origin late Middle English: from Old French masse, from Latin massa, from Greek maza ‘barley cake’; perhaps related to massein ‘knead’.Extra examples The industrial revolution heralded the start of mass production. The play was so awful that there was a mass exodus from the theatre at the interval. Their latest product is aimed at the mass market. They were aiming to control the proliferation of weapons of mass destruction. a mass movement/​audience/​protest/​demonstration a mass murderer/​grave large-scale/​mass production/​unemployment the mass media/​market
See the Oxford Advanced American Dictionary entry: mass