WordReference Random House Unabridged Dictionary of American English © 2025
e′quinoc′tial line′. 
  1. AstronomySee celestial equator. 
  • Middle English 1350–1400

WordReference Random House Unabridged Dictionary of American English © 2025
e′quinoc′tial cir′cle, [Astron.]
  1. AstronomySee celestial equator. 
  • Middle English 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::
equinoctial circle, equinoctial line
  1. another name for celestial equator
'equinoctial line' also found in these entries (note: many are not synonyms or translations):
celestial equator - equinoctial circle - equinoctial storm - line

Forum discussions with the word(s) "equinoctial line" in the title:


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