Aucune définition officielle pour le moment...
the border or outer boundary of a two-dimensional figure. 2. the length of such a boundary. 3. a line bounding or marking off an area. ...
http://dictionary.reference.com/browse/perimeter
Illustrated Math Dictionary - Definition of Perimeter.
http://www.mathsisfun.com/definitions/perimeter.html
pe·rim·e·ter (p -r m -t r). n. 1. Mathematics. a. A closed curve bounding a plane area. b. The length of such a boundary. 2. The outer limits of an area. ...
http://www.thefreedictionary.com/perimeter
noun. the outer boundary of a figure or area; the total length of this; an optical instrument for testing the scope of vision and the visual powers of ...
http://www.yourdictionary.com/perimeter
périmé, définition et synonymes du mot périmé. Définition : Qui n'est plus valable...
http://www.linternaute.com/dictionnaire/fr/definition/perime/
Définitions de périmer, synonymes, antonymes, dérivés de périmer, dictionnaire analogique de périmer (français)
http://dictionary.sensagent.com/p%C3%A9rimer/fr-fr/
Meaning of Perimeter: The outer boundary of a body or figure, or the sum of all the sides.
http://ardictionary.com/Perimeter/4037
Perimeter of a triangle. Definition: The total distance around the outside of a triangle. Try this Drag any orange dot to resize the triangle. ...
http://www.mathopenref.com/triangleperimeter.html