Meaning & use

equator

noun·Academic

Last updated

UK/ɪˈkweɪtə/
US/ɪˈkweɪtɚ/

Meanings

  1. nounsingular

    The imaginary circle around the Earth halfway between the North and South Poles, at zero degrees latitude.

    Grammar: Usually used with the: the equator. It is a single line, so it has no ordinary plural.

    Patterns

    • on the equator
    • cross the equator
    • north of the equator

    Ecuador takes its name from the equator, which runs through the country.

    The ship crossed the equator on Tuesday.

    Days and nights are almost equal in length near the equator.

  2. nouncountabletechnicalspecialist

    The imaginary circle around any round body, such as a planet or star, that lies midway between its two poles.

    Grammar: Countable in astronomy: Jupiter's equator, the celestial equator.

    Patterns

    • the equator of something
    • the celestial equator

    Jupiter spins fastest at its equator.

    The celestial equator is the Earth's equator projected onto the sky.

    A ring system circles the planet's equator.

Word forms

pluralequators

Common combinations

cross the equator
Sailors used to hold a ceremony when they crossed the equator.
near the equator
Rainforests grow near the equator.
at the equator
The sun is overhead at noon at the equator twice a year.
north of the equator
Most of the world's people live north of the equator.
south of the equator
Australia lies south of the equator.
the celestial equator
The star lies close to the celestial equator.

Synonyms and how they differ

the line
The line is an informal, old sailors' expression for the equator and is rarely used today.
zero latitude
Zero latitude is a technical way to say the same thing and is used in geography and navigation.

Opposites

the poles

Word family

equatorial adjective
relating to or near the equator
equatorward adverb
toward the equator

Commonly confused: equator or tropics? equator or latitude?

equator vs tropics

The tropics are the whole warm region between the Tropic of Cancer and the Tropic of Capricorn. The equator is only the line down the middle.

equator vs latitude

Latitude measures how far north or south a place is. The equator is the line where latitude is zero.

Practice

Which statement about the equator is correct?

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