an·ti·trust /ˌan-tē-'trəst, ˌan-ˌtī-/ adj: of, relating to, or being legislation against or opposition to business trusts or combinations; specif: consisting of laws to protect trade and commerce from unlawful restraints and monopolies or unfair business practices see also clayton antitrust act and sherman antitrust act in the important laws section
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.