perimeter

As nouns the difference between perimeter and apron

is that perimeter is the sum of the distance of all the lengths of the sides of an object while apron is an article of clothing worn over the front of the torso and/or legs for protection from spills.

As nouns the difference between perimeter and diameter

is that perimeter is the sum of the distance of all the lengths of the sides of an object while diameter is any straight line between two points on the circumference of a circle that passes through the centre/center of the circle.

As nouns the difference between perimeter and altimeter

is that perimeter is the sum of the distance of all the lengths of the sides of an object while altimeter is an apparatus for measuring altitude.

Perimeter is a related term of brim.

As nouns the difference between perimeter and brim

is that perimeter is (mathematics) the sum of the distance of all the lengths of the sides of an object while brim is (obsolete) the sea; ocean; water; flood or brim can be an edge or border (originally specifically of the sea or a body of water).

As a verb brim is

to be full to overflowing or brim can be of pigs: to be in heat, to rut.

As an adjective brim is

(obsolete) fierce; sharp; cold.

Perimeter is a related term of frame.

As nouns the difference between perimeter and frame

is that perimeter is (mathematics) the sum of the distance of all the lengths of the sides of an object while frame is frame, division of time on a multimedia timeline.

As a noun perimeter is

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

Perimeter is a related term of extremity.

As nouns the difference between perimeter and extremity

is that perimeter is (mathematics) the sum of the distance of all the lengths of the sides of an object while extremity is the most extreme or furthest point of something.

As a noun perimeter is

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

Fringe is a related term of perimeter.

As nouns the difference between fringe and perimeter

is that fringe is a decorative border while perimeter is (mathematics) the sum of the distance of all the lengths of the sides of an object.

As an adjective fringe

is outside the mainstream.

As a verb fringe

is to decorate with fringe.

As nouns the difference between perimeter and borderline

is that perimeter is the sum of the distance of all the lengths of the sides of an object while borderline is a boundary or accepted division; a border.

As an adjective borderline is

nearly; not clearly on one side or the other of a border or boundary, ambiguous.