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Pronunciation varies by accent · noun
The region surrounding a moving body, such as the wing of a bird or a gliding aeroplane, within which cyclic or vortical motion of the air occurs..
F. W. (Frederick William) Lanchester, "Aerial Flight - Volume 1", Chapter IV, p.139 Wing Form and Motion in the Periptery
Use periptery when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Periptery means The region surrounding a moving body, such as the wing of a bird or a gliding aeroplane, within which cyclic or vortical motion of the air occurs..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
F. W. (Frederick William) Lanchester, "Aerial Flight - Volume 1", Chapter IV, p.139 Wing Form and Motion in the Periptery
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