| Columbia Encyclopedia. 2001-2008. | | | | angstrom |
| | ( ng´str m) (KEY) , abbr. Å, unit of length equal to 10-10 meter (0.0000000001 meter); it is used to measure the wavelengths of visible light and of other forms of electromagnetic radiation, such as ultraviolet radiation and X rays. Scientists now prefer to use the nanometer (nm); 1 nm=10 Å. The angstrom is named in honor of Swedish physicist Anders J. Ångström. | | |
| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2008 Columbia University Press. |
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