Dictionary of Cancer Terms
View in Spanish: Nanómetro
Nanometer (NA-noh-MEE-ter)
A measure of length in the metric system. A nanometer is one billionth of a meter. An average human hair is about 60,000 nanometers thick. Nanometers are used to measure wavelengths of light and distances between atoms in molecules.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.