equator

noun

Definition of equatornext
as in diameter

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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 equator The dramatic new view, released by the European Space Agency (ESA) on May 13, spotlights Shalbatana Vallis, a sprawling Martian channel system near the planet's equator that stretches roughly 800 miles (1,300 kilometers, or about the length of Italy. — Samantha Mathewson, Space.com, 15 May 2026 But the area is significantly more challenging to navigate than those near the moon’s equator, where the Apollo astronauts touched down. — Denise Chow, NBC news, 11 Apr. 2026 At some point during that time, the capsule will carry them farther from the Earth than any human being has traveled — roughly 253,000 miles away, the equivalent of 10 trips around Earth at its equator. — Orlando Sentinel Editorial Board, The Orlando Sentinel, 5 Apr. 2026 While Apollo astronauts flew behind the moon near its equator, those missions were timed to ensure daylight at the landing sites facing Earth and the far side was in darkness. — William Harwood, CBS News, 30 Mar. 2026 See All Example Sentences for equator
Recent Examples of Synonyms for equator
  1. diameter
  2. radius
  3. periphery
  4. perimeter
Noun
  • None would be less than four inches in diameter, and the largest would be eight inches around.
    — Jeff Murray, Outdoor Life, 20 Aug. 2026
  • The platinum, for example, equates to the contents of an asteroid 16 to 43 meters in diameter.
    — Scott K. Johnson, ArsTechnica, 20 Aug. 2026
Definition of diameter
Noun
  • Within a six-inch radius, chances are that Pedicularis has tapped into the roots of Cassiope, drawing resources vital to the plant’s growth and survival.
    — Denise Hruby, Miami Herald, 21 Aug. 2026
  • According to a letter from a Meridian long-range planner included in the project’s application materials, there have been 1,988 single-family homes approved within a 1-mile radius of Summerlin in the past five years.
    — Rose Evans August 20, Idaho Statesman, 20 Aug. 2026
Definition of radius
Noun
  • Several city councilmembers maintained that neighborhoods on the periphery of the city struggle with overflowing parking and residents who live in those neighborhoods needed cars – and therefore parking — to get to work.
    — Luis Melecio-Zambrano, Mercury News, 19 Aug. 2026
  • At the periphery, the big cities with their golden nightlights bound together by long threads of motorway.
    — Literary Hub, Literary Hub, 19 Aug. 2026
Definition of periphery
Noun
  • The cougar was found lying on the sidewalk under the shade of a tree, where deputies set up a perimeter to keep vehicles and people away.
    — Ruben Vives, Los Angeles Times, 14 Aug. 2026
  • This mix of modernity and tradition works well, both inside and out, where a stroll around the ground’s perimeter switches quickly from feeling gloriously old-school to being brought right up to date.
    — Richard Sutcliffe, New York Times, 13 Aug. 2026
Definition of perimeter

Browse Nearby Words

equation
equator
equatorial
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Cite this Entry

“Equator.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/equator. Accessed 23 Aug. 2026.

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More from Merriam-Webster on equator

Nglish: Translation of equator for Spanish Speakers

Britannica.com: Encyclopedia article about equator

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