Definition of gigahertz noun from the Oxford Advanced American Dictionary

 

gigahertz

 noun
noun
NAmE//ˈɡɪɡəˌhərts//
 
(pl. gigahertz)(abbreviation GHz)(computing)(physics)
 
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a unit for measuring radio waves and the speed at which a computer operates; 1 ,000 ,000, 000 hertz
See the Oxford Advanced Learner's Dictionary entry: gigahertz