self-starter

English Thesaurus

1. an electric starting motor that automatically starts an internal-combustion engine (noun.artifact)

hypernym	:	starter, starter motor, starting motor,
definition	:	an electric motor for starting an engine (noun.artifact)

part holonym	:	electric motor,
definition	:	a motor that converts electricity to mechanical work (noun.artifact)

part meronym	:	ice, internal-combustion engine,
definition	:	a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine (noun.artifact)

2. an energetic person with unusual initiative (noun.person)

hypernym	:	ball of fire, fireball, human dynamo, powerhouse,
definition	:	a highly energetic and indefatigable person (noun.person)