planar
Americanadjective
-
of or relating to a plane
-
lying in one plane; flat
Other Word Forms
Etymology
Origin of planar
1840–50; < Late Latin plānāris flat, of a level surface, equivalent to Latin plān ( um ) plane 1 + -āris -ar 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A new study by mathematicians at Freie Universität Berlin shows that planar tiling, also known as tessellation, is far more than a decorative technique.
From Science Daily • Jan. 7, 2026
Inside its granite layers, researchers discovered numerous grains of quartz marked by tiny structures known as planar deformation features.
From Science Daily • Nov. 14, 2025
He had spent his life building a planar model of his ascent to the presidency, only to get whacked in the head by an unforeseen z-axis.
From Slate • Sep. 27, 2025
Subsequent investigation into the absolute stereochemistry confirmed the D-ribose configuration, thereby reinforcing the planar structure of this compound.
From Science Daily • Mar. 11, 2024
Assuming there are fifteen grains per linear inch, there are 15 x 15 per planar inch and 153 grains per cubic inch.
From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
