English

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

 

countervailing

 adjective
adjective
BrE BrE//ˈkaʊntəveɪlɪŋ//
 
; NAmE NAmE//ˈkaʊntərveɪlɪŋ//
 
[only before noun] (formal)
 
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having an equal but opposite effect Word Origin late Middle English (in the sense ‘be equivalent to in value’): from Anglo-Norman French contrevaloir, from Latin contra valere ‘be of worth against’ + -ing.
See the Oxford Advanced American Dictionary entry: countervailing