Wiktionary

exasecond

See also: exa-second

English edit

Etymology edit

exa- +‎ second

Noun edit

exasecond (plural exaseconds)

  1. (metrology) An SI unit of time equal to 1018 seconds. Symbol: Es
Retrieved from "https://en.wiktionary.org/w/index.php?title=exasecond&oldid=76329183"