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equinoctial circle

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noun Astronomy.
  1. celestial equator.

Origin of equinoctial circle

Middle English word dating back to 1350–1400
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for equinoctial circle

equinoctial circle

equinoctial line

noun
  1. 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

equinoctial circle in Science

equinoctial circle

  1. See celestial equator.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.