Liberal Dictionary English Dictionary
adjective
- opposing or intended to restrain trusts, monopolies, or other large combinations of business and capital, especially with a view to maintaining and promoting competition: antitrust legislation.
noun
- (modifier) mainly US regulating or opposing trusts, monopolies, cartels, or similar organizations, esp in order to prevent unfair competition
also anti-trust, 1890, U.S., from anti- + trust (n.) in the economic monopoly sense.