angstrom

English

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Etymology

Borrowed from Swedish, after physicist Anders Jonas Ångström.

Noun

angstrom (plural angstroms)

1. (physics) A unit of length equal to ${\displaystyle 10^{-10}}$ meters (that is, one ten-billionth of a meter), approximately the size of an atom, and denoted by the symbol Å, used especially to measure the wavelength of electromagnetic radiation or distances between atoms.

References

1. Wells, John C. (2008) Longman Pronunciation Dictionary, 3rd edition, Longman, →ISBN
2. Roach, Peter (2011) Cambridge English Pronouncing Dictionary, 18th edition, Cambridge University Press, →ISBN
3. ^ angstrom” in the Collins English Dictionary, Glasgow: HarperCollins Publishers.

Portuguese

Noun

angstrom m (plural angstroms)

1. (physics) angstrom (a very small unit of length, 10-10 m)