A multilateral agreement is a deal or agreement between three or more countries or parties. It means that several countries have come together and agreed to cooperate or work together on a specific issue or goal. Full definition
The TRIPs Agreement is an integral part of the WTO system and is one of the principal multilateral agreements on which that system is based. (europeanlawblog.eu)
The Obama administration has taken steps to reduce these emissions through bilateral and multilateral agreements with major polluters, including China, the world's biggest greenhouse gas emitter, and India. (scientificamerican.com)
The US system presents enormous hurdles and veto points for multilateral agreements (eg the Senate Treaty ratification process, which scuppered US participation in the League of Nations for example). (nextleft.org)