Definition of antitrust legislation noun from the Oxford Advanced Learner's Dictionary

 

antitrust legislation

 noun
noun
BrE
 
; NAmE
 
[uncountable]
 
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laws introduced in the US to encourage competition in business. Their main aim has been to prevent or control monopolies (= companies which are so large that no others can compete with them). The most important early antitrust laws passed by the United States Congress were the Sherman Antitrust Act (1890) and the Clayton Antitrust Act (1914). see also Taft-Hartley Act