a federal official who seeks to dissolve business trusts, especially through vigorous application of antitrust regulations.
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British Dictionary definitions for trustbuster
US informal a person who seeks the dissolution of corporate trusts, esp a federal official who prosecutes trusts under the antitrust laws
- trustbusting, 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