overdrive

o"ver*drive`

(?), n. 1. (Machinery) A gearing device which causes the drive shaft of an automobile or other machine to rotate at a speed greater than that of the engine crankshaft.
[PJC]

2. (Automotive) The gear setting of a motor vehicle at which the overdrive{1} is operative; as, cruising at 80 mph in overdrive.
[PJC]

3. Hence: [fig.] A state of unusually intense activity; as, when they got their new supercomputer, their research kicked into overdrive; one look at her made his heart jump into overdrive; -- used mostly of the activities of persons or groups.
[PJC]

 

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Tue 18th December 2018