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noun

nanosecond

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Nanosecond (noun) means a unit of time equal to one billionth of a second. Example: “The processor completes an operation in a few nanoseconds.”

noun
1
A unit of time equal to one billionth of a second.
"The processor completes an operation in a few nanoseconds."
"Since the tiny magnetic domains have to travel only submolecular distances, it is possible to read and write magnetic regions with different polarization as quickly as a single nanosecond — far faster than existing storage technologies." — John Markoff, Redefining the Architecture of Memory (2007)
2
An informal way of saying "an extremely short moment."
"He hesitated for a nanosecond before answering."

How to use nanosecond

Learner’s notes

In plain EnglishA billionth of a second, or, casually, an instant.

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Word forms

Plural
nanoseconds
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Fill the gap

Can you complete this real example?

The processor completes an operation in a few _____.

Etymology

From nano- (a billionth) plus second.

Rhymes for nanosecond

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Frequently asked questions

What does “nanosecond” mean?
The word “nanosecond” means a unit of time equal to one billionth of a second. In plain terms, a billionth of a second, or, casually, an instant.
How do you use “nanosecond” in a sentence?
Here is “nanosecond” used in a sentence: “The processor completes an operation in a few nanoseconds.”
What part of speech is “nanosecond”?
“Nanosecond” is a noun.
How many meanings does “nanosecond” have?
“Nanosecond” has 2 distinct senses listed in this dictionary. The most common is: a unit of time equal to one billionth of a second.