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Noun: angstrom unit
  1. A metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
    "The wavelength of visible light is typically measured in angstrom units";
    - angstrom, A

Derived forms: angstrom units

Type of: metric linear unit

Part of: micromillimeter [US], micromillimetre [Brit, Cdn], millimicron [Brit], nanometer [US], nanometre [Brit, Cdn], nm

Encyclopedia: Angstrom unit