Dictionary.com

nanosecond

[ nan-uh-sek-uhnd, ney-nuh- ]
/ ˈnæn əˌsɛk ənd, ˈneɪ nə- /
Save This Word!

noun

one billionth of a second. Abbreviation: ns, nsec

QUIZZES

THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?

Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
Question 1 of 8
Mississippi’s nickname comes from the magnificent trees that grow there. What is it?

Origin of nanosecond

First recorded in 1955–60; nano- + second2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for nanosecond

British Dictionary definitions for nanosecond

nanosecond
/ (ˈnænəʊˌsɛkənd) /

noun

one thousand-millionth of a secondSymbol: ns
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for nanosecond

nanosecond
[ nănə-sĕk′ənd ]

One billionth (10-9) of a second.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for nanosecond

nanosecond
[ (nan-uh-sek-uhnd) ]

A billionth of a second.

notes for nanosecond

The term is often used to refer to a very short time: “He missed having an accident by nanoseconds.”
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Tired of Typos? Get Help Now!