noun
- plural of angstrom: units of length equal to one ten-billionth of a meter, used to measure atomic and molecular dimensions
Usage: scientific; physics
Examples
- The wavelength of visible light ranges from about 4000 to 7000 angstroms.
- X-rays have wavelengths measured in angstroms.
- The diameter of a hydrogen atom is approximately 1.06 angstroms.
- Scientists use angstroms to describe the spacing between atoms in crystals.
- The resolution of the electron microscope was measured in angstroms.
- Ultraviolet light has wavelengths shorter than 4000 angstroms.