parasite drag

noun Aeronautics.
the component of drag caused by skin friction and the shape of the surfaces not contributing to lift.

Origin:
1925–30

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World English Dictionary
parasite drag
 
n
Also called: parasite resistance the part of the drag on an aircraft that is contributed by nonlifting surfaces, such as fuselage, nacelles, etc

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
Its known that parasite drag is reduced by these dimples.
Parasite drag is simply the mathematical sum of form drag and skin friction drag.
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