A jonas angstrom
[ang-struh m; swedish awng-strœm] /ˈæŋ strəm; swedish ˈɔŋ strœm/
noun
anders jonas
[an-derz joh-nuh s;; swedish ahn-duh rs-yoo-nahs] /ˈæn dərz ˈdʒoʊ nəs;; swedish ˈɑn dərsˈyu nɑs/ (show ipa), 1814–74, swedish astronomer and physicist.
angstrom
/ˈæŋstrʌm; -strəm/
noun
also called angstrom unit. a unit of length equal to 10–10 metre, used princ-p-lly to express the wavelengths of electromagnetic radiations. it is equivalent to 0.1 nanometre å, a
word origin
c20: named after anders j. ångström
ångström
/ˈæŋstrəm; swedish ˈɔŋstrœm/
noun
anders jonas (ˈandərs ˈjuːnas). 1814–74, swedish physicist, noted for his work on spectroscopy and solar physics
angstrom
n.
unit of length equal to one hundred millionth of a centimeter (used to measure wavelengths of light), 1892, named for swedish physicist anders ångström (1814-1874).
angstrom ang·strom or ång·strom (āng’strəm)
n.
abbr. a, å, angst
a unit of length equal to one hundred millionth (10-8) of a centimeter, used especially to specify radiation wavelengths.
angstrom
(āng’strəm)
a unit of length equal to one hundred-millionth (10-10) of a meter. it was once used to measure wavelengths of light and the diameters of atoms, but has now been mostly replaced by the nanometer.
ångström
(āng’strəm)
swedish physicist and astronomer who pioneered the use of the spectroscope in the -n-lysis of radiation. by studying the spectrum of visible light given off by the sun, ångström discovered that there is hydrogen in the sun’s atmosphere. the angstrom unit of measurement is named for him.
angstrom
unit of length used chiefly in measuring wavelengths of light, equal to 1010 metre, or 0.1 nanometer. it is named for the 19th-century swedish physicist anders jonas angstrom. the angstrom and multiples of it, the micron (104 a) and the millimicron (10 a), are also used to measure such quant-ties as molecular diameters and the thickness of films on liquids
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