trustbuster

/ˈtrʌstˌbʌstər/
noun
  1. A person or organization that works to break up large business monopolies or trusts, especially a government official or agency.
    • The famous trustbuster took on the giant oil company to promote fair competition.
    • Many people praised the trustbuster for protecting small businesses from unfair practices.
    • The new law gave the trustbuster more power to investigate corporate mergers.
Synonyms
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