Angstrom

n. unit of measurement equal to a hundred-millionth of a centimeter (used to measure the wavelengths of light)

An ångström or angstrom (symbol Å) (IPA pronunciation: or ; Swedish: ) is a non-SI unit of length that is internationally recognized, equal to 0.1 nanometre (nm). It can be written in scientific notations as 1×10−10 m (normalized notation) or (exponential notation) — both meaning . It is sometimes used in expressing the sizes of atoms, lengths of chemical bonds and visible-light spectra, and dimensions of parts of integrated circuits. It is commonly applied in structural biology. It is named after Anders Jonas Ångström.
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Noun
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
(synonym) angstrom unit, A
(hypernym) metric linear unit
(part-holonym) nanometer, nanometre, nm, millimicron, micromillimeter, micromillimetre
(part-meronym) picometer, picometre, micromicron

n. angstrom, unit of measurement equal to a hundred-millionth of a centimeter

n. angstrom, unit of measurement equal to a hundred-millionth of a centimeter (used to measure the wavelengths of light)