First Known Use: 1959
Dictionary
nanosecond
noun nano·sec·ond \-ˌse-kənd, -kənt\
: one billionth of a second
: a very short time
Full Definition of NANOSECOND
1
: one billionth of a second
2
: a very brief moment
See nanosecond defined for English-language learners
See nanosecond defined for kids
ADVERTISEMENT
Origin of NANOSECOND
International Scientific Vocabulary
Related to NANOSECOND
Rhymes with NANOSECOND
Medical Dictionary
nanosecond
noun nano·sec·ond \-ˌsek-ənd, -ənt\
Medical Definition of NANOSECOND
: one billionth of a second—abbreviation ns, nsec
Learn More About NANOSECOND
Browse
Next Word in the Dictionary: nanosomusPrevious Word in the Dictionary: nanoscaleAll Words Near: nanosecond
ADVERTISEMENT
Seen & Heard
What made you want to look up nanosecond? Please tell us where you read or heard it (including the quote, if possible).