See Also: Planar(health)
planar(dictionary)
echo planar(medicine)
echo-planar imaging(medicine)

planar (iou)



planar adjective & noun. M19.
[from PLANE noun3 + -AR1, after linear.]
A. adjective.
Of or pertaining to a plane; (having parts) situated in or forming a plane or (esp. parallel) planes; flat, two-dimensional. M19.
Electronics. Designating or pertaining to a solid-state device having boundaries of a number of different n- and p-type regions lying in a single plane. Also, designating a process in which such devices are made by the diffusion of impurities into a semiconductor through holes etched in a thin silicon oxide layer. M20.
b. noun. Computing. A horizontal motherboard. L20.
pla'narity noun the quality or condition of being planar M19.