slipstream
UK[ˈslɪpstriːm]US[ˈslɪpstriːm]
n
The current of air or water driven back by a rapidly moving object, such as a vehicle or animal.
n
An assisting force regarded as drawing something along behind something else.
v
To follow closely behind another vehicle, especially in a race, to take advantage of the reduced air resistance in its slipstream.
Morpheme Breakdown
slip
stream
slip
stream
Etymology
The word 'slipstream' is a modern compound, first recorded in the early 20th century, formed from two ancient Germanic roots. 'Slip' originates from a Proto-Germanic verb implying a smooth, quick, or stealthy motion. 'Stream' derives from a Proto-Germanic noun for a flowing body of water. The compound ingeniously combines these literal ideas—'smooth motion' and 'current'—to create a technical term in aerodynamics and hydrodynamics. It describes the current that 'slips' along behind a moving object, a concept later metaphorically extended to describe any influential force that pulls something along in its wake.
Analysis
Structure: slip + stream
- slip: From Middle English slippen, of Germanic origin; related to Dutch slippen and German schlüpfen. Its functional role is to convey the sense of moving smoothly and quickly.
- stream: From Old English strēam, of Germanic origin; related to Dutch stroom and German Strom. Its functional role is to denote a current or flow of water or air.
Examples
The cyclist stayed in the leader's slipstream to conserve energy.
The company thrived in the slipstream of the new technological revolution.
The race car driver attempted to slipstream his rival before making a pass on the final lap.