angstrom

[ ang-struhm ]

noun(often initial capital letter)
  1. a unit of length, equal to one tenth of a millimicron, or one ten millionth of a millimeter, primarily used to express electromagnetic wavelengths. Symbol: Å; Abbreviation: A

Origin of angstrom

1
First recorded in 1895–1900; named after A. J. Ångström
  • Also called angstrom unit, Angstrom unit.

Words Nearby angstrom

Other definitions for Ångström (2 of 2)

Ångström
[ ang-struhm; Swedish awng-strœm ]

noun
  1. An·ders Jo·nas [an-derz joh-nuhs; Swedish ahn-duhrs-yoo-nahs], /ˈæn dərz ˈdʒoʊ nəs; Swedish ˈɑn dərsˈyu nɑs/, 1814–74, Swedish astronomer and physicist.

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How to use angstrom in a sentence

British Dictionary definitions for angstrom (1 of 2)

angstrom

/ (ˈæŋstrʌm, -strəm) /


noun
  1. Also called: angstrom unit a unit of length equal to 10 –10 metre, used principally to express the wavelengths of electromagnetic radiations. It is equivalent to 0.1 nanometre: Symbol: Å, A

Origin of angstrom

1
C20: named after Anders J. Ångström

British Dictionary definitions for Ångström (2 of 2)

Ångström

/ (ˈæŋstrəm, Swedish ˈɔŋstrœm) /


noun
  1. Anders Jonas (ˈandərs ˈjuːnas). 1814–74, Swedish physicist, noted for his work on spectroscopy and solar physics

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for angstrom (1 of 2)

angstrom

[ ăngstrəm ]


  1. A unit of length equal to one hundred-millionth (10-10) of a meter. It was once used to measure wavelengths of light and the diameters of atoms, but has now been mostly replaced by the nanometer.

Scientific definitions for Ångström (2 of 2)

Ångström

[ ăngstrəm ]


  1. Swedish physicist and astronomer who pioneered the use of the spectroscope in the analysis of radiation. By studying the spectrum of visible light given off by the Sun, Ångström discovered that there is hydrogen in the Sun's atmosphere. The angstrom unit of measurement is named for him.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.