Definition, Meaning & Synonyms

milli

prefix
ˈmɪli
Definition
A unit prefix in the metric system denoting a factor of one thousandth (1/1000).
Examples
  • Millimeter (mm) – one thousandth of a meter.
  • Milligram (mg) – one thousandth of a gram.
  • Millisecond (ms) – one thousandth of a second.
Meaning
Used to indicate that a measurement is one thousandth of the base unit.
Synonyms
  • One-thousandth
  • Subunit