Angstrom (noun)

A unit of measurement of length, equal to one ten-billionth of a meter (0.1 nanometer) and commonly used to express the size of atoms and molecules.

Origin:

Late 19th century, named for the swedish physicist anders jonas ångström.

Examples:

1. The wavelength of light is measured in angstroms.
2. The size of the molecule is measured in angstroms.
3. Angstrom is used in the field of optics and solid-state physics.
4. The width of the nanowire is measured in angstroms.
5. The angstrom is a very small unit of measurement, typically used to express the size of atoms and molecules.