second Comparison Table

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second comparison table

Subject has historical origin is an instance of is an acronym for is a unit of is a kind of has symbol has definition

base SI unit Syteme Internationale SI unit a unit assumed to be mutually independent from which all other units are derived

second unit time time unit

second was defined originally as the fraction 1/86400 of the mean solar day base SI unit Syteme Internationale time s duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom

Subject	has historical origin	is an instance of	is an acronym for	is a unit of	is a kind of	has symbol	has definition
base SI unit			Syteme Internationale		SI unit		a unit assumed to be mutually independent from which all other units are derived
second unit				time	time unit
second	was defined originally as the fraction 1/86400 of the mean solar day	base SI unit	Syteme Internationale	time		s	duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom

Next base SI unit: ampere Up: base SI unit, second unit Previous base SI unit: mole