nanosecond Syllabification: (nan·o·sec·ond)Pronunciation: /ˈnanōˌsekənd/ (abbreviation: ns)Translate nanosecond | into Italian Definition of nanosecond noun one billionth of a second. informal a very short time; a moment:he replied without a nanosecond’s hesitationnanosecond in other Oxford dictionaries Definition of nanosecond in the British & World English dictionary
