オングストロームおんぐすとろーむMeanings1nounangstromA unit of length equal to 10⁻¹⁰ meters, used mainly in physics and chemistry for atomic-scale measurements.原げん子しの半はん径けいは数すうオングストローム程てい度どです。The radius of an atom is on the order of a few angstroms.
