second (Q22648)
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SI unit of time, defined as 9 192 631 770 periods of the ground-state hyperfine transitions of caesium-133.
- seconds
- sec.
- sec
- s
- SI second
- SI seconds
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | second |
SI unit of time, defined as 9 192 631 770 periods of the ground-state hyperfine transitions of caesium-133. |
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