Home › Words › Z › zettaamperezettaamperezettaampere means an SI unit measure of electrical current, equivalent to 10²¹ amperes (a sextillion amperes). 'ZA' is the SI unit symbol for the zettaampere.Among words judged in Lexicurio's Arena, zettaampere ranks #36,608 of 42,749 for Qualifying.EtymologyFrom zetta- + ampere.nounAn SI unit measure of electrical current, equivalent to 10²¹ amperes (a sextillion amperes). 'ZA' is the SI unit symbol for the zettaampere.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.gigaampere 69% match — An SI unit of current equal to 10⁹ amperes. Symbol: GA vs zettaampere →teraampere 67% match — An SI unit of current equal to 10¹² amperes. Symbol: TA vs zettaampere →zettahertz 67% match — An SI unit of frequency equal to 10²¹ hertz. vs zettaampere →abampere 66% match — Unit of electrical current in electromagnetic and Gaussian cgs systems of units, equal to 10 amperes in SI units. vs zettaampere →attoampere 66% match — An SI unit of electric current equal to 10⁻¹⁸ amperes. Symbol: aA vs zettaampere →yoctoampere 66% match — An SI unit of electrical current equal to 10⁻²⁴ amperes. Symbol: yA vs zettaampere →hectoampere 65% match — An SI unit of electrical current equal to 10² amperes. Symbol: hA vs zettaampere →gigamp 63% match — One thousand million (10⁹) amperes. Symbol: GA. vs zettaampere →