Angstrom

Definitions

1. Alternative letter-case form of ang­strom.
   alt-of, countable, uncountable
2. Alternative spelling of angstrom.
   alt-of, alternative
3. A unit of length equal to 10⁻¹⁰ meters (that is, one ten-billionth of a meter), approximately the size of an atom, and denoted by the symbol Å, used especially to measure the wavelength of electromagnetic radiation or distances between atoms.

Equivalents

CEFR level