airfoil: meaning, definition, pronunciation and examples
C2 / RareTechnical / Scientific
Quick answer
What does “airfoil” mean?
A structure with a curved shape designed to provide lift in flight when air flows over it, as on an aircraft wing.
Audio
Pronunciation
Definition
Meaning and Definition
A structure with a curved shape designed to provide lift in flight when air flows over it, as on an aircraft wing.
1. In engineering: any streamlined surface, such as a wing, propeller blade, or rudder, designed to control airflow and generate force. 2. In automotive design: a wing or spoiler designed to improve a vehicle's aerodynamics.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning. British English occasionally uses 'aerofoil' as a spelling variant, but 'airfoil' is standard in technical contexts globally. In UK motoring journalism, 'spoiler' is more common for the automotive sense.
Connotations
Technical precision, engineering design.
Frequency
Equally rare in both dialects outside specialized fields.
Grammar
How to Use “airfoil” in a Sentence
[Noun] + airfoil (e.g., wing airfoil, turbine airfoil)[Adjective] + airfoil (e.g., cambered airfoil)airfoil + [Preposition] + [Noun] (e.g., airfoil of a wing, airfoil for a drone)Vocabulary
Collocations
Examples
Examples of “airfoil” in a Sentence
verb
British English
- The engineers worked to airfoil the blade for greater efficiency.
American English
- The team airfoiled the strut to reduce wind noise.
adverb
British English
- The wing was shaped airfoil-smoothly.
American English
- The surface was finished airfoil-perfectly.
adjective
British English
- The airfoil design was critical to the glider's performance.
American English
- They analyzed the airfoil characteristics in the wind tunnel.
Usage
Meaning in Context
Business
Rare. Used only in aerospace/engineering company reports or proposals.
Academic
Common in aeronautical engineering, physics, and mechanical engineering courses and publications.
Everyday
Extremely rare. Most laypeople would say 'wing shape' or simply 'wing'.
Technical
The primary domain. Central to discussions of lift, drag, and aerodynamic design in aviation, wind turbines, and motorsport.
Watch out
Common Mistakes When Using “airfoil”
- Misspelling as 'airfoil' or 'air-foil'.
- Using it as a general synonym for 'wing' (it refers specifically to the cross-sectional shape).
- Pronouncing it as /ˈeər.fəʊl/ (with a schwa) instead of /ˈeə.fɔɪl/.
FAQ
Frequently Asked Questions
A wing is the entire structure. An airfoil refers specifically to the characteristic cross-sectional shape of that wing (or blade) that produces aerodynamic force.
Yes, in high-performance automotive design, components like spoilers and wings are often described as having an airfoil shape or profile to generate downforce.
It is pronounced as /ˈer.fɔɪl/, with the first syllable rhyming with 'hair' without the 'h', and the second syllable rhyming with 'coil'.
Rarely and only in highly technical jargon. It means 'to shape or design something as an airfoil'. The noun form is vastly more common.
A structure with a curved shape designed to provide lift in flight when air flows over it, as on an aircraft wing.
Airfoil is usually technical / scientific in register.
Phrases
Idioms & Phrases
- “None directly associated.”
Learning
Memory Aids
Mnemonic
AIR + FOIL. Imagine AIR flowing over a shiny piece of FOIL shaped like a wing to help a plane fly.
Conceptual Metaphor
A SHAPE THAT SLICES THE AIR (like a knife).
Practice
Quiz
In which field is the term 'airfoil' MOST commonly used?