'Periptery' definitions:

Definition of 'Periptery'

From: GCIDE
  • Periptery \Pe*rip"ter*y\, n. [Gr. ? flying round about.] The region surrounding a moving body, such as the wing of a bird or a gliding a["e]roplane, within which cyclic or vortical motion of the air occur. [Webster 1913 Suppl.]