Definition of adware noun from the Oxford Advanced Learner's Dictionary

 

adware

 noun
(British English)noun
BrE BrE//ˈædweə(r)//
 
; NAmE NAmE//ˈædwer//
 
[uncountable]
 
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a type of software that automatically displays or downloads advertisements on a computer screen, smartphone, etc. when a user is online My computer keeps getting infected with unwanted adware. compare malware, spyware