diameter

noun

Definition of diameternext
as in radius

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Example Sentences

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.
Recent Examples of diameter This lens is made up of 20 elements and two mirrors plus a large-diameter aspherical lens that nips distortion and aberration in the bud. — New Atlas, 6 Aug. 2026 These six lids should range from just a few inches in diameter to at least eight inches in diameter for maximum versatility. — Bestreviews, Mercury News, 5 Aug. 2026 The 25,000-square-foot facility contains a vertical test section measuring 20 feet in diameter and 24 feet tall. — Amy Galo, FOXNews.com, 3 Aug. 2026 Fireworks shells are measured in diameter—one inch, three inches, four, twelve. — Paige Williams, New Yorker, 3 Aug. 2026 See All Example Sentences for diameter
Recent Examples of Synonyms for diameter
radius
Noun
  • The new map is computed using the IQP eclipse computational method that accounts for an improved value for the eclipse solar radius as well as the exact shape of the moon and topography.
    — Jamie Carter, Forbes.com, 7 Aug. 2026
  • Delivery will be available within a roughly 7-mile radius of the facility including parts of Redan, Lilburn, Snellville, Tucker and Lithonia.
    — Amy Wenk, AJC.com, 7 Aug. 2026
Definition of radius

Browse Nearby Words

dials
diameter
diameters
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Cite this Entry

“Diameter.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/diameter. Accessed 9 Aug. 2026.

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More from Merriam-Webster on diameter

Nglish: Translation of diameter for Spanish Speakers

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