ang·strom
noun/ˈæŋstrəm/
/ˈæŋstrəm/
(chemistry, physics)- a very small unit of length, equal to 1x10-10 metre, used for measuring wavelengths and the distance between atoms
埃（长度单位，等于 10-10 米，用于量度波长和原子间的距离） Word Originlate 19th cent.: named after A. J. Ångström (1814-1874), the Swedish physicist.