pertaining to the celestial equator.
occurring at or about the time of an equinox.
Botany. (of a flower) opening regularly at a certain hour.
- in·ter·e·qui·noc·tial, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use equinoctial in a sentence
Nor is the equinoctial heat more discouraging to them than the accumulated winter of both the poles.English: Composition and Literature | W. F. (William Franklin) Webster
I don't know if you remember that equinoctial gale that blew about the 18th or 19th.My New Curate | P.A. Sheehan
She plunged into the chilly equinoctial darkness as the clock struck ten, for her fifteen miles' walk under the steely stars.Tess of the d'Urbervilles | Thomas Hardy
The next afternoon we crossed the equinoctial line in longitude 21 degrees 50 minutes west.A Voyage to the South Sea | William Bligh
The 'kids' are two little stars which first rise in the evening towards the end of September, during the equinoctial gales.The Aeneid of Virgil | Virgil
British Dictionary definitions for equinoctial
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
a storm or gale at or near an equinox
another name for celestial equator
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
Relating to an equinox.
Relating to the celestial equator.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.