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angstrom 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/ˈaNGstrəm/,
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angstroms, plural; ångströms, plural;
  1. A unit of length equal to one hundred-millionth of a centimeter, 1010 meter, used mainly to express wavelengths and interatomic distances

  1. a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
  2. The ångström or angstrom (symbol Å) (Swedish) is an internationally recognized unit of length equal to 0.1 nanometre or 1 metres. It is named after Anders Jonas Ångström. Although accepted for use, it is not formally defined within the International System of Units (SI).
  3. Ångström is a small lunar impact crater located on the border between Oceanus Procellarum to the west and Mare Imbrium to the east. To the south is a formation of mounts rising out of the mare named the Montes Harbinger. ...
  4. 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. Abbreviated Å
  5. a unit of length defined as 1/6438.4696 of the wavelength of Cadmium red line, very close to 10^-10 meter
  6. A unit of length equal to 1 x 10^-8 cm or .1 nanometer. It was named after A. J. Angstrom (1814-1874), a Swedish spectroscopist.
  7. A unit of length equal to 10^-10 m.
  8. A unit of measure equal to 0.1nanometers.
  9. Unit of distance. Bohr Radius in these units is a0=.529A
  10. A measure of distance, usually used to measure wavelengths of light. An angstrom is equal to 10^-10 of a meter (0.0000000001 meter). The angstrom is named in honor of Swedish physicist Anders J. Angstrom.
  11. 1 Ångström (Å) = 1.0 x 10-10 meters = 0.1 nm = 100 picometers
  12. A unit of length, represented by Å , equal to 10^-8 centimeter. It is commonly used to express the wavelengths of electromagnetic radiations in the visible, ultraviolet, and X-ray regions.
  13. 10^-8 cm, or 0.1 nm. It is abbreviated as Å. The Angstrom is the natural unit for atomic physics, as the ground-state diameter of the hydrogen atom is about 1 Å. Visible light has wavelengths between about 4000 and 7000 Å.
  14. A unit for the measurement of wavelength. Equals one hundred millionth of a centimeter (0.003937 millionth of an inch).
  15. A unit of length equal to 0.0000000001 or (1 x 10^-10) meter.
  16. A unit of measurement, equaling 10 -10 meter or 10 -8 centimeters, usually used to express short wavelengths.
  17. Unit of measure for the wavelength of light. 1 ångström (Å) = 10^–10 meters = 0.1 nm
  18. Ten to the minus tenth (10–10) meters or one millimicron, a unit used to define the wavelength of light.
  19. one ten-billionth of a meter, used for measuring the diameter of chemical molecules. Thus, in ethanol dehydration, a molecular sieve material with holes 3 Ångstrom units in diameter, may be used to separate water, which has a 2.5 Å diameter, from ethanol which has a 4.5 Å diameter.
  20. A unit of measurement that describes the wavelengths of certain high-frequency radiation. One angstrom unit (AU, or Å) measures 1/100,000,000 of a centimeter. Most wavelengths used in dentistry vary from about 0.1 AU to a maximum of 1.0 AU.
  21. A metric unit of length measurement=
  22. This very small unit of length is usually associated with wavelengths, and is equal to 1 x 10^-8 cm.
  23. 1 x10^-10 meters, 1/10 nanometer.