equator
noun
equa·tor
i-ˈkwā-tər 
ˈē-ˌkwā-
1
: the great circle of the celestial sphere whose plane is perpendicular to the axis of the earth
2
: a great circle of the earth or a celestial body that is everywhere equally distant from the two poles and divides the surface into the northern and southern hemispheres
3
a
: a circle or circular band dividing the surface of a body into two usually equal and symmetrical parts
b
: equatorial plane
the equator of a dividing cell
4
Examples of equator in a Sentence
Recent Examples on the Web
With time, the disintegrated asteroid pieces would have assembled into a ring shape around our planet’s equator.
—
Margherita Bassi, Smithsonian Magazine, 19 Sep. 2024
Arthropleura lived between 290 million and 346 million years ago, skittering around the Earth’s tropical equator alongside other massive arthropods like the two-foot-long scorpion Pulmonoscorpius.
—Olatunji Osho-Williams, Smithsonian Magazine, 22 Oct. 2024
Some crucial scientific findings include abundant water near Jupiter’s equator, lightning in Jupiter’s clouds, and the cause of Jupiter's x-ray aurorae.
—Jamie Carter, Forbes, 30 Sep. 2024
Temperatures near the Moon’s equator, for example, can spike to 250°F (121°C) in the day and then plunge at night to -208°F (-133°C), according to NASA.
—Simone McCarthy, CNN, 30 Sep. 2024
See all Example Sentences for equator 
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Margherita Bassi, Smithsonian Magazine, 19 Sep. 2024
Arthropleura lived between 290 million and 346 million years ago, skittering around the Earth’s tropical equator alongside other massive arthropods like the two-foot-long scorpion Pulmonoscorpius.
—Olatunji Osho-Williams, Smithsonian Magazine, 22 Oct. 2024
Some crucial scientific findings include abundant water near Jupiter’s equator, lightning in Jupiter’s clouds, and the cause of Jupiter's x-ray aurorae.
—Jamie Carter, Forbes, 30 Sep. 2024
Temperatures near the Moon’s equator, for example, can spike to 250°F (121°C) in the day and then plunge at night to -208°F (-133°C), according to NASA.
—Simone McCarthy, CNN, 30 Sep. 2024
See all Example Sentences for equator
Dictionary Entries Near equator
Cite this Entry
“Equator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/equator. Accessed 28 Nov. 2024.
Copy CitationKids Definition
equator
noun
equa·tor
i-ˈkwāt-ər
ˈē-ˌkwāt-
: an imaginary circle around the earth everywhere equally distant from the north pole and the south pole
Medical Definition
equator
noun
equa·tor
i-ˈkwāt-ər
ˈē-ˌ
ˈē-ˌ
1
: a circle or circular band dividing the surface of a body into two usually equal and symmetrical parts especially at the place of greatest width
the equator of the lens of the eye
2
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