millisecond

noun mil·li·sec·ond \ˈmi-lə-ˌse-kənd, -kənt\

: one thousandth of a second

Full Definition of MILLISECOND

: one thousandth of a second

See millisecond defined for English-language learners

See millisecond defined for kids

International Scientific Vocabulary

First Known Use: 1909

Medical Dictionary

noun mil·li·sec·ond \ˈmil-ə-ˌsek-ənd, -ənt\

: one thousandth of a second—abbreviation ms, msec

Next Word in the Dictionary: millivoltPrevious Word in the Dictionary: milliroentgenAll Words Near: millisecond

What made you want to look up millisecond? Please tell us where you read or heard it (including the quote, if possible).

Put-downs with flair

How to use a word that (literally) drives some people nuts.

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears