'Jump-start' definitions:

Definition of 'jump-start'

From: WordNet
noun
Starting an automobile engine that has a weak battery by means of jumper cables to another car; "my battery was dead so I had to get a jumpstart from my neighbor" [syn: jumpstart, jump-start]
verb
Start (a car engine whose battery is dead) by connecting it to another car's battery [syn: jumpstart, jump-start, jump]
verb
Start or re-start vigorously; "The Secretary of State intends to jumpstart the Middle East Peace Process" [syn: jumpstart, jump-start]

Definition of 'Jump-start'

From: GCIDE
  • Jump-start \Jump"-start`\, n. The action or event of jump-starting. For motor vehicles, the jump-starting of an engine is also called a jump. [PJC] Jump suit

Definition of 'Jump-start'

From: GCIDE
  • jumpstart \jump"start`\, Jump-start \Jump"-start`\, v. t.
  • 1. To start (the engine of a motor vehicle) using a temporary connection to supply electrical power from another vehicle or another source of current; -- an emergency procedure used when a vehicle's own battery has insufficient power to start the vehicle normally.
  • Note: Cables used to transmit electrical current from one vehicle to another for the purpose of jump-starting are called jumper cables. [PJC]
  • 2. To provide a speedy start to (an activity) using the assistance of some external impetus; to re-energize (an activity proceeding sluggishly); -- accomplished by application of a stimulus not normally used in the activity. [Figurative] [PJC]