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
   - angstrom unit, A

Derived forms: angstroms

Type of: metric linear unit

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

Encyclopedia: Angstrom

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