zettasecond

名词 n.

英文释义

名词 n.
  1. An SI unit of time equal to 10²¹ seconds. Symbol: Zs. (= trillions of years, a hypothetical time span that is meaningless except in speculative contexts such as theoretical physics, philosophy, religion, and humorous hyperbole)
    — Holonyms: yottasecond < ronnasecond < quettasecond

词形变化

zettaseconds plural

词源

Etymology tree
English zetta-
English second
English zettasecond
From zetta- + second.
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