What is a plane simple definition?

1 : airplane. 2 : a surface in which if any two points are chosen a straight line joining them lies completely in that surface. 3 : a level of thought, existence, or development The two stories are not on the same plane. 4 : a level or flat surface a horizontal plane.

What is a plane in geography?

In geography, a plain is a flat expanse of land that generally does not change much in elevation, and are primarily treeless. Plains occur as lowlands along valleys or at the base of mountains, as coastal plains, and as plateaus or uplands.

Does a plane have a definition?

Definition of a Plane In geometry, a plane is a flat surface that extends into infinity. It is also known as a two-dimensional surface. A plane has zero thickness, zero curvature, infinite width, and infinite length. The figure shown above is a flat surface extending in all directions.

What is the definition of a plane?

Plane (geometry) In mathematics, a plane is a flat, two-dimensional surface that extends infinitely far. A plane is the two-dimensional analogue of a point (zero dimensions), a line (one dimension) and three-dimensional space.

What is the medical definition of plane?

Medical Definition of plane. 1a : a surface that contains at least three points not all in a straight line and is such that a line drawn through any two points in it lies wholly in the surface. b : an imaginary plane used to identify parts of the body or a part of the skull — see frankfort horizontal plane, midsagittal plane.

Is plane a noun?

“Plane” is a noun that can refer to an airplane, a tool for smoothing wood, or a level surface. In geometry, “plane” means any two-dimensional surface that extends infinitely through space.

What is the definition of plane in science?

1. a flat or level surface. 2. Geom. a surface generated by a straight line moving at a constant velocity with respect to a fixed point. 3. an area of a two-dimensional surface having determinate extension and spatial direction or position: horizontal plane.