περιφέρεια

A. circumference, κύκλου Heraclit. 103 ; (rounded) surface, σφαίρας Ti.Locr. 100e ; of helmets, Plu. Cam. 40 (pl.); τὰ ὦτα ἐπὶ τῆς αὐτῆς π. τοῖς ὄμμασι Arist. HA 494b14; more generally, curve, Id. EN 1102a31; curvature of the edge of a leaf, Thphr. HP 3.10.5 ; roundness, Hp. Art. 61 ; spherical or curved shape, Epicur. Ep. 2pp.49,51U.

2. arc of a circle, Arist. Ph. 264b25, Euc. 3.28; marked on concave sun-dial (πόλος), Sammelb. 358.1 (iii B.C.).

II. wandering, error, ἐν καρδίᾳ LXX Ec. 9.3.