millisecond

[mil-uh-sek-uh nd] /ˈmɪl əˌsɛk ənd/
noun
1.
one thousandth of a second.
Abbreviation: msec.
Origin
1905-10; milli- + second2
British Dictionary definitions for milliseconds

millisecond

/ˈmɪlɪˌsɛkənd/
noun
1.
one thousandth of a second ms
Word Origin and History for milliseconds

millisecond

n.

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

milliseconds in Medicine

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

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