# Dictionary Definition

# User Contributed Dictionary

## English

### Adjective

planar- of, or pertaining to, a plane
- flat, two-dimensional
- of a graph, able to be embedded in the plane with no edges intersecting
- A complete graph with more than four nodes is never planar.

#### Related terms

# Extensive Definition

Planar can refer to:

- Planar (computer graphics), computer graphics pixel information from several bitplanes
- Planar graph, graph that can be drawn so that no edges intersect (or that can be embedded) in the plane
- Plane (mathematics), a name for something made up of flat planes or pertaining to planes
- Planar Systems, U.S. digital display manufacturing corporation based in Hillsboro, Oregon
- Zeiss Planar, photographic lens designed by Paul Rudolph at Carl Zeiss in 1896