angstrom Angstrom • anguid · · · Info · Definitions · Synonyms · Characters · · angstrom · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation. Synonyms: angstrom unit, A. · · Noun Definition 1 Synonyms · · · angstrom unit · · Synonym 1 a · · Synonym 2 Characters · · a latin small letter a U+0061 g latin small letter g U+0067 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074