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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
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The inner bark of that red willow is the main ingredient used to make tobacco for the equinoctial Sacred Pipe ceremony, which is meant to rekindle the sacred fire of life on Earth.
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
First Known Use of equinoctial
1521
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