A computer program or system composed of multiple interacting intelligent agents, capable of solving highly complex problems which are difficult or impossible for an individual agent or monolithic system to solve.

(formal) An email client or email reader.

plural of mail user agent

plural of anti-caking agent

plural of colour retention agent

plural of principal-agent problem

The problem that a person or entity serving as an agent for another, and able to make decisions on the other's behalf, may be motivated instead to make decisions that benefit themselves.