HyperDicEnglishDATE ... date of reference

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Related WikiPedia: date of reference
English 1 sense of the expression date of reference:
NOUNtimedate of reference, epoch(astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
Englishdate of reference: 1 sense noun 1, time
Meaning(astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded.
Synonymepoch
Categoryastronomy, uranologyThe branch of physics that studies celestial bodies and the universe as a whole
BroaderdateThe particular day, month, or year (usually according to the Gregorian calendar) that an event occurred
Spanishépoca

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