airstream
Học thuậtThân thiện
Definition
Noun: 1. A flow of air: A current or stream of moving air. 2. The slipstream of an aircraft: Specifically, the flow of air that is driven backward by an aircraft propeller or a jet engine. 3. A prevailing wind: A relatively well-defined and consistent wind current.
Usage and Examples
- The glider pilot searched for a rising airstream to gain altitude.
- The technician measured the velocity of the airstream from the engine.
- The region is known for its steady westerly airstream.
Advanced Usage
- In meteorology: Refers to major wind patterns like the jet stream, a fast-flowing, narrow airstream high in the atmosphere.
- In aerodynamics: Often discussed in terms of laminar (smooth) versus turbulent airstream.
Variants and Related Words
- Slipstream (noun): The airstream pushed back by a moving vehicle, often used interchangeably in aviation contexts.
- Airflow (noun): A more general term for the movement of air, especially around an object.
Synonyms
- Air current
- Wind
- Draft (especially for a localized current indoors)
- Jet stream (for a specific, high-altitude type)
Related Phrases and Idioms
- To ride the airstream: To use a current of air for travel or lift, commonly used in aviation and with birds.
- The eagle spread its wings to ride the thermal airstream.
Noun
- the flow of air that is driven backwards by an aircraft propeller
- a relatively well-defined prevailing wind