from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One that seeks to prosecute or dissolve business trusts.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A person or entity responsible for breaking up trusts or monopolies.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a federal agent who engages in trust busting
trust + buster (Wiktionary)