noun🔗ShareHertzioIn the International System of Units, the derived unit of frequency; one (period or cycle of any periodic event) per second. Symbol: Hz"The radio station broadcasts at a frequency of 98.5 hertz. "La estación de radio emite a una frecuencia de 98.5 hercios.frequencyphysicselectronicssignalunitsoundelectrictimescienceChat with AIVocabulary GamePractice Reading