| Noun | 1. | antitrust case - a legal action brought against parties who are charged with limiting free competition in the market placeaction at law, legal action, action - a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong law, jurisprudence - the collection of rules imposed by authority; "civilization presupposes respect for the law"; "the great problem for jurisprudence to allow freedom while enforcing order" |