As nouns the difference between airfoil and parafoil
is that airfoil is (american spelling) a structure shaped to produce lift when moving in air while parafoil is a parachute, kite or glider with an aerofoil shaped fabric canopy or wing.
airfoil
English
Alternative forms
* aerofoil (British)
Noun
(
en noun)
(American spelling) A structure shaped to produce lift when moving in air.
(American spelling) A wing of an aircraft.
Synonyms
* (structure shaped to produce lift when moving in air) foil
* (wing) wing
parafoil
English
Noun
(
en noun)
A parachute, kite or glider with an aerofoil shaped fabric canopy or wing
The wing or sail of parachute etc. as (1)