# Area vs. Planimeter — What's the Difference?

## Definitions

#### Area➦

Area is the quantity that expresses the extent of a two-dimensional region, shape, or planar lamina, in the plane. Surface area is its analog on the two-dimensional surface of a three-dimensional object.

#### Planimeter➦

A planimeter, also known as a platometer, is a measuring instrument used to determine the area of an arbitrary two-dimensional shape.

#### Area➦

A roughly bounded part of the space on a surface; a region:a farming area; the New York area.

#### Planimeter➦

An instrument that measures the area of a plane figure as a mechanically coupled pointer traverses the perimeter of the figure.

#### Area➦

A surface, especially an open, unoccupied piece of ground:a landing area; a playing area.

#### Planimeter➦

An integrating device used to measure the area of an irregular figure via tracing its outline.

#### Area➦

A distinct part or section, as of a building, set aside for a specific function:a storage area in the basement.

#### Planimeter➦

An instrument for measuring the area of any plane figure, however irregular, by passing a tracer around the bounding line; a platometer.

#### Area➦

A division of experience, activity, or knowledge; a field:studies in the area of finance; a job in the health-care area.

#### Planimeter➦

A measuring instrument for measuring the area of an irregular plane figure

#### Area➦

An open, sunken space next to a building; an areaway.

#### Area➦

Abbr. AThe extent of a planar region or of the surface of a solid measured in square units.

#### Area➦

(mathematics) A measure of the extent of a surface; it is measured in square units.

#### Area➦

A particular geographic region.

#### Area➦

Any particular extent of surface, especially an empty or unused extent.
The photo is a little dark in that area.

#### Area➦

The extent, scope, or range of an object or concept.
The plans are a bit vague in that area.

#### Area➦

(British) An open space, below ground level, giving access to the basement of a house, and typically separated from the pavement by railings.

#### Area➦

(soccer) Penalty box; penalty area.

#### Area➦

(slang) Genitals.

#### Area➦

Any plane surface, as of the floor of a room or church, or of the ground within an inclosure; an open space in a building.
The Alban lake . . . looks like the area of some vast amphitheater.

#### Area➦

The inclosed space on which a building stands.

#### Area➦

The sunken space or court, giving ingress and affording light to the basement of a building.

#### Area➦

An extent of surface; a tract of the earth's surface; a region; as, vast uncultivated areas.

#### Area➦

The superficial contents of any figure; the surface included within any given lines; superficial extent; as, the area of a square or a triangle.

#### Area➦

A spot or small marked space; as, the germinative area.

#### Area➦

Extent; scope; range; as, a wide area of thought.
The largest area of human history and man's common nature.

#### Area➦

A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography);
It was a mountainous area
Bible country

#### Area➦

A particular environment or walk of life;
His social sphere is limited
It was a closed area of employment
He's out of my orbit

#### Area➦

A subject of study;
It was his area of specialization
Areas of interest include...

#### Area➦

A part of a structure having some specific characteristic or function;
The spacious cooking area provided plenty of room for servants

#### Area➦

A part of an animal that has a special function or is supplied by a given artery or nerve;
In the abdominal region

#### Area➦

The extent of a 2-dimensional surface enclosed within a boundary;
The area of a rectangle
It was about 500 square feet in area