a theoretical sun that moves along the celestial equator at a constant speed and completes its annual course in the same amount of time the real sun takes at variable speeds
a hypothetical description of a complex entity or process
Cite this entry
Style:
MLA
MLA
APA
Chicago
Copy citation
DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘mean sun'.
Views expressed in the examples do not represent the opinion of Vocabulary.com or its editors.
Send us feedback
Word Family
2 million people are mastering new words.Master a word
Sign up now (it’s free!)
Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement.