# cylindrical coordinate

- Usually cylindrical coordinates. a member of a system of coordinates for locating a point in space by its polar coordinates and its perpendicular distance to the polar plane.

See also polar coordinate.

## Origin of cylindrical coordinate^{}

First recorded in 1930–35

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# cylindrical coordinates

- three coordinates defining the location of a point in three-dimensional space in terms of its polar coordinates (r, θ) in one plane, usually the (x, y) plane, and its perpendicular distance, z, measured from this plane

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