Definition, Meaning & Synonyms
picometer
Noun
ˈpɪkəˌmiːtə(r)
Definition
A picometer is a unit of measurement that is equal to one trillionth of a meter.
Examples
- The diameter of a hydrogen atom is about 25 picometers.
- The wavelength of certain gamma rays can be measured in picometers.
Meaning
In scientific terms, a picometer is often used to measure extremely small distances, such as the sizes of atoms and molecules.
Synonyms
- Trillionth of a meter
- Pico
