self-starter

/ˌˈsɛlf ˌstɑrdər/

Other forms: self-starters

Definitions of self-starter

1. noun

   an electric starting motor that automatically starts an internal-combustion engine
   type of:

   starter, starter motor, starting motor

   an electric motor for starting an engine
2. noun

   an energetic person with unusual initiative
   type of:

   ball of fire, fireball, human dynamo, powerhouse

   a highly energetic and indefatigable person