planar

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

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.
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 Vibration types Most vibration platform machines use either tri-planar or oscillating vibration. Bestreviews, Chicago Tribune, 9 Apr. 2026 The planar glass and polished aluminum materials give the piece a more industrial feeling—a sensation juxtaposed by the LED strip within, which emits a soft, warm glow. Nicole Hoey, Robb Report, 31 Mar. 2026 To support this, the institute has come up with new hardware, including a planar galvanometer scanner for ultra-fast, high-precision beam steering. Georgina Jedikovska, Interesting Engineering, 26 Mar. 2026 See All Example Sentences for planar

Word History

First Known Use

1850, in the meaning defined at sense 1

Time Traveler
The first known use of planar was in 1850

Browse Nearby Words

Cite this Entry

“Planar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/planar. Accessed 26 Apr. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster