Try Our Apps


Avoid these words. Seriously.


[mil-uh-sek-uh nd] /ˈmɪl əˌsɛk ənd/
one thousandth of a second.
Abbreviation: msec.
Origin of millisecond
First recorded in 1905-10; milli- + second2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
Examples from the Web for millisecond
Contemporary Examples
Historical Examples
  • Now, fractions of a millisecond later, the Lady May was directly in line.

    The Game of Rat and Dragon Cordwainer Smith
  • "Point six three eight seconds, sir," the Omans said, holding up a millisecond timer.

    Masters of Space Edward Elmer Smith
  • To get all that stuff and 'port up here in the millisecond or so we had the screens open?

    The Galaxy Primes Edward Elmer Smith
  • The telepaths were trained to become ultrasensitive, trained to become aware of the Dragons in less than a millisecond.

    The Game of Rat and Dragon Cordwainer Smith
British Dictionary definitions for millisecond


one thousandth of a second ms
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
Cite This Source
Word Origin and History for millisecond

"one thousandth of a second," 1922, from milli- + second (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
millisecond in Medicine

millisecond mil·li·sec·ond (mĭl'ĭ-sěk'ənd)

Abbr. ms, msec One thousandth (10-3) of a second.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Nearby words for millisecond

Word Value for millisecond

Scrabble Words With Friends