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equinoctial
[ ee-kwuh-nok-shuhl, ek-wuh- ]
/ ˌi kwəˈnɒk ʃəl, ˌɛk wə- /
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adjective
pertaining to the celestial equator.
occurring at or about the time of an equinox.
Botany. (of a flower) opening regularly at a certain hour.
noun
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Origin of equinoctial
OTHER WORDS FROM equinoctial
in·ter·e·qui·noc·tial, adjectiveWords nearby equinoctial
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use equinoctial in a sentence
British Dictionary definitions for equinoctial
equinoctial
/ (ˌiːkwɪˈnɒkʃəl) /
adjective
relating to or occurring at either or both equinoxes
(of a plant) having flowers that open and close at specific regular times
astronomy of or relating to the celestial equator
noun
a storm or gale at or near an equinox
another name for celestial equator
Word Origin for equinoctial
C14: from Latin aequinoctiālis concerning the equinox
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for equinoctial
equinoctial
[ ē′kwə-nŏk′shəl, ĕk′wə- ]
Adjective
Relating to an equinox.
Relating to the celestial equator.
Noun
See celestial equator.
The American Heritage® Science Dictionary
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