second (Q9818)

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SI unit of time, defined as 9 192 631 770 periods of the ground-state hyperfine transitions of caesium-133
  • sec
  • s
  • 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
  • sec
  • s
  • seconds

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