metrology Symbol for the hectosecond, an SI unit of time equal to 102 seconds

a metric unit of volume or capacity equal to 100 liters, An abbreviation of hectoliter See metric system, metrology Symbol for the hectoliter (hectolitre), an SI unit of fluid measure equal to 102 liters (litres), abbreviation_ hectoliter

picosecond, noun_ metrology Symbol for the picosecond, an SI unit of time equal to 10?12 seconds

metrology Symbol for the decisecond, an SI unit of time equal to 10?1 seconds