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angstrom

angstrom

1 8.7
A very small unit of length equal to one ten-billionth of a meter
  • noun
  • /ˈæŋstrəm/
  • Specialized
translation icon : ångström
  • HOMER: I believe the data actually reads ten angstroms, not 100.

OK Oh, chemists love it because a bond is a few angstroms.

Examples

  • The atomic dimensions of the molecule are around 1.5 angstrom in size.

  • The industry standard overcoat thickness is in the 150-200 angstrom range.

    Academic text (1996)
  • We'll use a hundred angstrom filter to begin.

  • Suppose we have one angstrom as the wavelength.

  • Typically... one to two angstroms.

  • In calculations thus far, the distance has been set at about 5 angstroms.

    Academic text (2001)
  • Between 4,000 angstrom units and 7,800 angstrom units.

  • "We can see things clearly down to 15 angstroms instead of 70 angstroms."

    Academic text (2000)
  • The crystals are about 30 angstroms high and 200-400 angstroms long.

    Academic text (1993)
  • Thin-film media are composed of grains between 100 and 500 angstroms in diameter.

    Academic text (1996)

Synonyms

angstrom unit
vsangstrom
  • Specialized
7.0

A very small unit of length equal to one ten-billionth of a meter used for light wavelengths and atoms

includes that use and also applies to atomic dimensions

Compounds

angstrom unit
  • Specialized
7.0

A very small unit of length equal to one ten-billionth of a meter used for light wavelengths and atoms

Surface Forms

angstrom singular
angstroms plural

Etymology

Angstrom is named after the Swedish scientist Anders Jonas Ångström, who carefully measured the wavelengths of light. One angstrom is one ten-billionth of a meter, which is why the name is used for very small lengths like light waves and atoms.