- Of, relating to, or situated in a plane.
- Flat: a planar surface.
- Having a two-dimensional characteristic.
Origin of planarLate Latin planaris, flat, from Latin planus; see plain.
(comparative more planar, superlative most planar)
- Of or pertaining to a plane.
- A planar projection of a three-dimensional object is its projection onto a plane.
- Flat, two-dimensional.
- (graph theory, 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.
- (transistor chip, semiconductor devices) Having a flat profile, not etched into a mesa.
From Late Latin planarius (“relating to a plane"), from planum (“plane").
planar - Computer Definition
A technique developed by Fairchild Instruments that creates transistor sublayers by forcing chemicals under pressure into exposed areas. Planar superseded the mesa process and was a major step toward creating the chip.