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equinoctial

adjective equi·noc·tial \ ˌē-kwə-ˈnäk-shəl , ˌe- \

Definition of equinoctial

1 : relating to an equinox or to a state or the time of equal day and night
2 : relating to the regions or climate on or near the equator
3 : relating to the time when the sun passes an equinoctial point

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Recent Examples of equinoctial from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'equinoctial.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of equinoctial

1545

in the meaning defined at sense 1

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2

equinoctial

noun

Definition of equinoctial

1 : equator 1
2 : an equinoctial storm

First Known Use of equinoctial

1521

in the meaning defined at sense 1

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Learn More about equinoctial

  1. Nglish: Translation of equinoctial for Spanish speakers

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