ALL meanings of zeptosecond
zep·to·sec·ond
Z z - noun zeptosecond one sextillionth (10 -21) of a second. Abbreviation: zsec, zs. 1
- noun zeptosecond A unit of time equal to 0.000 000 000 000 000 000 001 seconds and with symbol zs. 1
- noun zeptosecond a sextillionth of a second 0