Defenition of the word date of reference
    
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Defenition of the word date of reference
        
                    - (astronomy) the precise date that is the point of reference for which information (as coordinates of a celestial body) is referred
 
                    - (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
 
                
     
Synonyms for the word date of reference
Hypernyms for the word date of reference
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