1. (law) an interest in which there is a fixed right to present or future enjoyment and that can be conveyed to another
   "The employee had a vested interest in the company's pension plan"
    
2. Groups that seek to control a social system or activity from which they derive private benefit
   "The oil industry lobby represented a powerful vested interest in energy policy discussions"

Derived forms: vested interests

Type of: interest, interest group, stake

Encyclopedia: Vested interest