Definition of Rubik’s Cube™ noun from the Oxford Advanced Learner's Dictionary

 

Rubik’s Cube™

 noun
noun
BrE BrE//ˈruːbɪks kjuːb//
 
; NAmE NAmE//ˈruːbɪks kjuːb//
 
 
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a puzzle consisting of a plastic cube covered with coloured squares that you turn to make each side of the cube a different colour Word Origin 1980s: named after Erno Rubik (born 1944), its Hungarian inventor.
See the Oxford Advanced American Dictionary entry: Rubik’s Cube™