noun
- a friend in a position of influence or power who may advance one’s interests, especially a helpful person who is close to someone in authority.
noun Law.
noun
- an influential acquaintance who can promote one’s interests
An individual or group interested in influencing the outcome of a lawsuit but not an actual party to the suit. The statement presented to the court is an amicus curiae brief; amicus curiae is Latin for “friend of the court.”