turbojet
C1Technical/Formal
Definition
Meaning
A jet engine in which air is drawn into a rotating compressor and mixed with fuel, with the hot combustion gases then expanding through a turbine that drives the compressor and then out through a propelling nozzle.
An aircraft powered by such an engine; also used figuratively to describe something that operates with great speed or force.
Linguistics
Semantic Notes
The term is primarily technical and specific to aerospace engineering. In figurative use, it retains connotations of high power and speed.
Dialectal Variation
British vs American Usage
Differences
No significant semantic differences. Spelling is consistent. UK sources may use 'aeroplane' where US uses 'airplane' in context.
Connotations
Technical, powerful, fast. Neutral in both varieties.
Frequency
Low frequency in general discourse, but standard within aerospace and engineering contexts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
[aircraft] is powered by a [turbojet]The [design] incorporates a [turbojet]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “to have a turbojet for a heart (figurative, meaning to be very energetic or fast-paced)”
Usage
Context Usage
Business
Rarely used, except in aerospace/defense sectors (e.g., 'The contract is for turbojet components.')
Academic
Common in engineering and aerospace literature.
Everyday
Very rare. Might be used by enthusiasts.
Technical
Standard term in aerospace engineering and aviation.
Examples
By Part of Speech
adjective
British English
- turbojet-powered aeroplane
American English
- turbojet-powered airplane
Examples
By CEFR Level
- Some old fighter planes have a turbojet.
- A turbojet engine works by compressing air and mixing it with fuel.
- The development of the turbojet revolutionized aviation in the mid-20th century.
- Early commercial airliners, like the de Havilland Comet, were powered by relatively inefficient turbojet engines compared to modern high-bypass turbofans.
Learning
Memory Aids
Mnemonic
Think 'TURBO' (fast spinning) + 'JET' (fast flying) = an engine where a fast-spinning turbine makes a jet.
Conceptual Metaphor
SPEED/POWER IS A TURBOJET (e.g., 'His mind was a turbojet of ideas.')
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'турбожет' – the correct Russian term is 'турбореактивный двигатель' (ТРД) or just 'реактивный двигатель'.
Common Mistakes
- Confusing 'turbojet' with 'turbofan' (the latter has a large fan at the front).
- Using it as a general term for any jet engine.
Practice
Quiz
What is the primary defining component of a turbojet engine?
FAQ
Frequently Asked Questions
A turbojet forces all incoming air through the core engine. A turbofan has a large fan at the front that bypasses some air around the core, making it more efficient and quieter for subsonic flight.
Yes, primarily in military fighter aircraft (especially supersonic) and some business jets. Most modern commercial airliners use turbofans.
No, it is exclusively a noun (and on rare occasions, an attributive adjective).
The concept was developed independently in the 1930s by Frank Whittle in the UK and Hans von Ohain in Germany.