Definition, Meaning & Synonyms
femtometer
noun
/ˈfɛm.təˌmiː.tər/
Definition
A femtometer is a unit of length in the metric system that is equal to one quadrillionth (10^-15) of a meter.
Examples
- The diameter of a proton is about 0.84 femtometers.
- In particle physics, we often deal with measurements on the order of femtometers.
- The femtometer is useful for understanding the structure of atomic nuclei.
Meaning
It is commonly used in the field of nuclear physics to measure extremely small distances, typically at the scale of atomic and subatomic particles.
Synonyms
- fm
