English Dictionary

perimeter

/pəˈɹɪmɪtə(ɹ)/

noun

(mathematics) The sum of the distance of all the lengths of the sides of an object. / (mathematics) The length of such a boundary. / The outer limits of an area. See synonyms at circumference.

The perimeter of the square is 20 units.

意味（1）

(mathematics) The sum of the distance of all the lengths of the sides of an object.

意味（2）

(mathematics) The length of such a boundary.

意味（3）

The outer limits of an area. See synonyms at circumference.

意味（4）

A fortified strip or boundary usually protecting a military position.

意味（5）

An instrument for determining the extent and shape of the field of vision.