Definition of Tupperware™ noun from the Oxford Advanced Learner's Dictionary

 

Tupperware™

 noun
noun
BrE BrE//ˈtʌpəweə(r)//
 
; NAmE NAmE//ˈtʌpərwer//
 
[uncountable]
 
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plastic containers used mainly for storing food Culture When Tupperware was first introduced in the 1960s, the company that made it paid people to hold Tupperware parties in their homes, to which they invited friends and offered to sell them Tupperware goods. Word Origin 1950s: from Tupper, the name of the American manufacturer, + ware.
See the Oxford Advanced American Dictionary entry: Tupperware™