Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A unit of length equal to one hundred-millionth (10−8) of a centimeter, used especially to specify radiation wavelengths.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun physics A very small unit of length, 10-10 m, approximately the size of an atom, used especially to measure the wavelength of electromagnetic radiation or distances between atoms. Symbol Å

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[After Anders Jonas Ångström.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From the name of the Swedish physicist Anders Jonas Ångström.

Examples

  • (An angstrom is one ten-billionth of a meter, the approximate diameter of a single atom.)

    Boing Boing: September 19, 2004 - September 25, 2004 Archives

  • TEAM 0.5 is capable of producing images with a resolution of one-half angstrom, which is less than the diameter of a single hydrogen atom.

    PhysOrg.com - latest science and technology news stories

  • TEAM 0.5 is capable of producing images with a resolution of one-half angstrom, which is less than the diameter of a single hydrogen atom.

    PhysOrg.com - latest science and technology news stories

  • In science news: I recently used the word "angstrom" in a humorous context, and many people laughed, and some people sneered (mostly engineers), and the wonderful Melissa Evans just gave me the facts, ma'am:

    SFGate: Top News Stories

  • In science news: I recently used the word "angstrom" in a humorous context, and many people laughed, and some people sneered (mostly engineers), and the wonderful Melissa Evans just gave me the facts, ma'am:

    SFGate: Top News Stories

  • In science news: I recently used the word "angstrom" in a humorous context, and many people laughed, and some people sneered (mostly engineers), and the wonderful Melissa Evans just gave me the facts, ma'am:

    SFGate: Top News Stories

  • - With such capabilities, this guy could be an ultimate multilinguist if there ever was one instead of squandering his abilities on rapping in a fake language ... angstrom

    Klingon-Language Rapper

  • - With such capabilities, this guy could be an ultimate multilinguist if there ever was one instead of squandering his abilities on rapping in a fake language ... angstrom

    Klingon-Language Rapper » E-Mail

  • A new imaging technique developed by researchers at the University of Illinois overcomes the limit of diffraction and can reveal the atomic structure of a single nanocrystal with a resolution of less than one angstrom (less than one hundred-millionth of a centimeter).

    Friday!

  • I've never bought a jar of Hellmann's without first comparing it's per ounce, pound, angstrom unit, or whatever the applicable measurement, price to that of Kraft, Cains, etc.

    Gaming the Groceries

Comments

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  • unit of emotional pain

    February 20, 2007

  • Ha! Though that implies your emotional pain is very, very small, since an angstrom is also "A unit of measure for a wavelength of light equal to ten one billionths of a meter or one-tenth of a nanometer. 10^-10 meters", according to this.

    October 5, 2007

  • Mega-angstrom?

    October 5, 2007

  • A mega-angstrom is still really small, 10^-4. I think you should start with Tera-angstrom and work your way up from there.

    October 6, 2007

  • True. Tera-angstrom it is.

    October 6, 2007

  • So how many tera-angstroms in a Rabbit Angstrom?

    October 6, 2007

  • Point sionnach, for the Updike reference! I enjoyed the Rabbit series, but I *love* The Centaur.

    October 6, 2007

  • measure of computer-related anxiety equivalent to 1000 nail-bytes

    November 7, 2007