Definition: angstrom

A unit of measurement that is approximately 1/250 millionth of an inch. The wavelengths of light are measured in angstroms, and increasingly, the elements of a transistor are reaching angstrom levels. See Intel 20A, angstrom era and process technology.

   Scale       Angstroms

   atom          1-5

   nanometer      10

   micron
   (micrometer)  10,000

   human hair   500,000