planar

1 of 2

adjective

pla·​nar ˈplā-nər How to pronounce planar (audio)
-ˌnär
1
: of, relating to, or lying in a plane
2
: two-dimensional in quality
planarity
plā-ˈner-ə-tē How to pronounce planar (audio)
-ˈna-rə-
noun

planarity

2 of 2

noun

pla·​nar·​i·​ty pləˈnarətē How to pronounce planarity (audio)
plural -es
: the quality or state of being planar

Examples of planar in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
The keypad itself has 12 mechanical buttons, one clickable knob in the upper-left corner, and a planar joystick in the upper-right corner. — Brian Westover, PC Magazine, 3 Aug. 2026 Thea Energy previously developed its planar coil technology through the agency’s BETHE program. — Neetika Walter, Interesting Engineering, 27 July 2026 Specifically, OpenAI said in an announcement published on its website that its models disproved a central conjecture in an area of discrete geometry tied to Paul Erdős’s planar unit distance problem, a famously stubborn question first posed in 1946. — Ron Schmelzer, Forbes.com, 22 May 2026 The carousel also includes both a prism and grism (a planar prism) that will allow the telescope to do spectroscopy, giving us a picture of what wavelengths of light are arriving from certain sources or how severely redshifted the light of distant objects has become. — John Timmer, ArsTechnica, 23 Apr. 2026 See All Example Sentences for planar

Word History

First Known Use

Adjective

1850, in the meaning defined at sense 1

Time Traveler
The first known use of planar was in 1850

Rhymes for planar

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Browse Nearby Words

planaea
planar
planaria
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Cite this Entry

“Planar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/planar. Accessed 16 Aug. 2026.

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