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“ya”
ya (adverb) (not comparable)
In geology, paleontology, an abbreviation for "years ago": In archeological dating, dates are measured from 1950, the period when radiocarbon dating became a practical tool in the archeologists arsenal.
"Yr" stands for "years", and "ya" stands for "years ago".
This entry is located in the following unit:
Archeology, Archaeology
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