VDict - Definition of date of reference

English - English (Wordnet) dictionary (also found in English - Vietnamese)

date of reference

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Noun

(astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded

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Words contain "date of reference" in its definition in English - English (Wordnet) dictionary:
date rain date blind date double-date naegele's rule futures contract sell-by date date-mark out-of-date postmark more...

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