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trustbuster

[truhst-buhs-ter]
noun
  1. a federal official who seeks to dissolve business trusts, especially through vigorous application of antitrust regulations.
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Origin of trustbuster

An Americanism dating back to 1900–05; trust + buster
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for trustbuster

trustbuster

noun
  1. US informal a person who seeks the dissolution of corporate trusts, esp a federal official who prosecutes trusts under the antitrust laws
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Derived Formstrustbusting, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012