angstrom

noun

ang·​strom ˈaŋ-strəm How to pronounce angstrom (audio)
also
ˈȯŋ- How to pronounce angstrom (audio)
: a unit of length equal to one ten-billionth of a meter

Examples of angstrom in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This is the smallest number of any chip yet; 18A means 18 angstroms, an angstrom being one ten-billionth of a meter. Geoff Colvin, Fortune, 12 Oct. 2024 Instead of evenly doping a transistor channel, the company’s strategy is to lay down the channel in three layers, each about 50 to 100 angstroms thick, and each with a different concentration of dopant. IEEE Spectrum, 7 Dec. 2011 In the best cases, researchers can now make maps with resolutions below 2 angstroms, putting cryo-EM on par with crystallography. Eric Hand, Science | AAAS, 23 Jan. 2020 The technique allowed them to see Zika at a resolution of just 3.1 angstroms. Jaclyn Jeffrey-Wilensky, STAT, 26 June 2018 Gaps between the probes measure a mere 100 angstroms – roughly the space occupied by 66 hydrogen molecules – which requires the manufacturing process to be perfect, lest a researcher end up looking at the wrong probe. Brian Alexander, WIRED, 1 June 2000

Word History

Etymology

Anders J. Ångström

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of angstrom was in 1881

Dictionary Entries Near angstrom

angster

angstrom

Ångström

Cite this Entry

“Angstrom.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/angstrom. Accessed 21 Nov. 2024.

Kids Definition

angstrom

noun
ang·​strom ˈaŋ-strəm How to pronounce angstrom (audio)
: a unit of length used especially of wavelengths (as of light) and equal to one ten-billionth of a meter
abbreviation Å

Medical Definition

angstrom

noun
ang·​strom
ˈaŋ-strəm also ˈȯŋ-
: a unit of length equal to one ten-billionth of a meter

Biographical Definition

Ångström

biographical name

Ång·​ström ˈaŋ-strəm How to pronounce Ångström (audio)
ˈȯŋ-
Anders Jonas 1814–1874 Swedish physicist

More from Merriam-Webster on angstrom

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!