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Definition of equatorial

equatorial

/ˌɛkwəˈtɔːriəl/
eq · ua · to · ri · al

Adverb:equatorially
•
Plural:equatorials
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equatorial Lexical Profile

equatorial Game Scores & Validity

• adjective

1

Of, relating to, or situated at or near the equator.

Example

"The satellite was launched into an equatorial orbit around the Earth."


2

Characteristic of the conditions found near the equator, especially having a hot, humid climate.

Example

"Dense equatorial rainforests support an extraordinary diversity of plant and animal life."

Synonyms
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Antonyms
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• noun

1

An astronomical telescope mounted with one axis parallel to the Earth's axis of rotation, allowing it to track celestial bodies across the sky by rotating around a single axis.

Example

"The observatory's nineteenth-century brass equatorial is still used for public stargazing nights."

• Rhymes for equatorial

Word Origin & Etymology

Formed in the late 18th century from the noun 'equator' plus the suffix '-ial', ultimately tracing back to Medieval Latin 'aequator' (one who equalizes), from Latin 'aequare' (to make equal).

Cite this Entry


Wordmom. (2026). Definition of Equatorial. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/equatorial
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