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

 

antigravity

 noun
noun
BrE BrE//ˌæntiˈɡrævɪti//
 
; NAmE NAmE//ˌæntiˈɡrævɪti//
 
[uncountable](physics)
 
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an imaginary force that works against gravity
See the Oxford Advanced American Dictionary entry: antigravity