| ATTOSECOND | • attosecond n. (Metrology) An SI unit of time equal to 10-18 seconds. Symbol: as. • ATTOSECOND n. ten to the power of minus eighteen seconds. |
| ATTOSECONDS | • attoseconds n. Plural of attosecond. • ATTOSECOND n. ten to the power of minus eighteen seconds. |
| FEMTOSECOND | • femtosecond n. A unit of time equal to 0.000 000 000 000 001 seconds (i.e. 1×10−15 seconds) and with symbol fs. • FEMTOSECOND n. one quadrillionth part of a second. |
| FEMTOSECONDS | • femtoseconds n. Plural of femtosecond. • FEMTOSECOND n. one quadrillionth part of a second. |
| MICROSECOND | • microsecond n. (Metrology) An SI unit of time equal to 10-6 seconds. Symbol: μs It is commonly represented with symbol… • MICROSECOND n. one millionth of a second. |
| MICROSECONDS | • microseconds n. Plural of microsecond. • MICROSECOND n. one millionth of a second. |
| NANOSECOND | • nanosecond n. A measure of time equal to one billionth of a second. Abbreviation: ns. • NANOSECOND n. a billionth of a second. |
| NANOSECONDS | • nanoseconds n. Plural of nanosecond. • NANOSECOND n. a billionth of a second. |
| PICOSECOND | • picosecond n. (Metrology) An SI unit of time equal to 10-12 seconds. Symbol: ps. • PICOSECOND n. a trillionth of a second. |
| PICOSECONDS | • picoseconds n. Plural of picosecond. • PICOSECOND n. a trillionth of a second. |
| YOCTOSECOND | • yoctosecond n. (Metrology) An SI unit of time equal to 10-24 seconds. Symbol: ys. • YOCTOSECOND n. a very small unit of time. |
| YOCTOSECONDS | • yoctoseconds n. Plural of yoctosecond. • YOCTOSECOND n. a very small unit of time. |
| ZEPTOSECOND | • zeptosecond n. (Metrology) A unit of time equal to 0.000 000 000 000 000 000 001 seconds, that is, 10-21 second, and… • ZEPTOSECOND n. a 10 to the -21 part of a second. |
| ZEPTOSECONDS | • zeptoseconds n. Plural of zeptosecond. • ZEPTOSECOND n. a 10 to the -21 part of a second. |