English Explanatory Dictionary

petasecond

English dictionary entry

Meanings

noun
  1. An SI unit of time equal to 10¹⁵ seconds. Symbol: Ps. (= 31 709 800 years)

Pronunciation

/ˈpɛ.təˌsɛk.ənd/

Word forms

petasecond petaseconds

Etymology

From peta- + second.

Related words

mul:Ps
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