equinoctial Hear it!

equinoctial definition

equi·noc·tial (ē′kwi näk′s̸həl)

adjective

  1. relating to either of the equinoxes or to equal periods of day and night
  2. occurring at or about the time of an equinox
  3. equatorial

Etymology: ME & OFr equinoxial < L aequinoctialis

noun

  1. celestial equator
  2. a storm occurring at or about the time of an equinox

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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