exasecond

名词 n.
中文释义

英文释义

名词 n.
  1. An SI unit of time equal to 10¹⁸ seconds. Symbol: Es. (= 31 709 800 000 years, which is more time than has elapsed in the Universe, that is, since the Big Bang [about 13 800 000 000 years].)
    — Holonyms: zettasecond < yottasecond < ronnasecond < quettasecond

词形变化

exaseconds plural

词源

Etymology tree
English exa-
English second
English exasecond
From exa- + second.
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