The Collaborative International Dictionary
Peripheries
Periphery \Pe*riph"er*y\, n.; pl. Peripheries. [L. peripheria, Gr. ?; ? around + fe`rein to bear, carry: cf. F. p['e]riph['e]rie.]
The outside or superficial portions of a body; the surface.
(Geom.) The circumference of a circle, ellipse, or other figure.
Wiktionary
peripheries
n. (plural of periphery English)