Equator Definition

ĭ-kwātər
noun
An imaginary circle around the earth, equally distant at all points from both the North and South Poles: it divides the earth's surface into the Northern and Southern Hemispheres.
Webster's New World
A circle like this around any celestial body.
Webster's New World
Any circle that divides a sphere or other body into two equal and symmetrical parts.
Webster's New World
Webster's New World
Synonyms:
pronoun

The Earth’s equator.

Wiktionary
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Other Word Forms of Equator

Noun

Singular:
equator
Plural:
equators

Origin of Equator

  • Middle English from Medieval Latin aequātor (diēī et noctis) equalizer (of day and night) from Latin aequāre to equalize equate

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Late Latin (circulus) aequator (diei et noctis).

    From Wiktionary

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