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Definition of microsecond
microsecond
/ˈmaɪkroʊˌsɛkənd/
mi · cro · sec · ond
Plural:microseconds
microsecond Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 10k
Syllables
4
microsecond Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A unit of time equal to one millionth of a second.
Example
"The processor can execute thousands of calculations within a single microsecond."
2
An extremely brief interval of time; an instant.
Example
"For a microsecond, she hesitated before stepping onto the stage."
Synonyms
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Cite this Entry
Wordmom. (2026). Definition of Microsecond. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/microsecond