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ONAD→nanosecond

nanosecond

Flag: gbEnglishOxford New American Dictionary
nanosecond /ˈnanōˌsekənd, ˈnænoʊˌsɛkənd / (abbreviation ns)
▸ noun one billionth of a second.
▪ informal a very short time; a moment:
he replied without a nanosecond's hesitation.