zeptosecond

Definition from Wiktionary, the free dictionary
Jump to: navigation, search
See also: zepto-second

English[edit]

Etymology[edit]

zepto- +‎ second

Noun[edit]

zeptosecond (plural zeptoseconds)

  1. A unit of time equal to 0.000 000 000 000 000 000 001 seconds, that is, 10−21 second, and with symbol zs.