perimeter

[Lat. per i metros, from Greek per i metros: pref. peri-, and metron =a measure; Fr. périmètre; Ital. & Sp. per i metro.] Geom.: The bounding line of a plane surface, or the sum of all the sides. "If it [a circle] be perfect, all the lines, from some one point of it drawn to the perimeter , must be exactly equal." -More: Antidote against Atheism , bk. i., ch. vi., § 1. pěr-i-mět-ric-al, adj. [Eng. perimeter; -ical.] Pertaining or relating to the perimeter.