English-Catalan dictionary. 2013.
Fraunhofer, Joseph von — • Optician (1787 1826) Catholic Encyclopedia. Kevin Knight. 2006. Fraunhofer, Joseph von Joseph von Fraunhofer … Catholic encyclopedia
Fraunhofer lines — Fraun ho*fer lines prop. n. pl.. (Physics.) The lines of the spectrum; especially and properly, the dark lines of the solar spectrum, so called because first accurately observed and interpreted by Fraunhofer, a German physicist. [1913 Webster] … The Collaborative International Dictionary of English
Spectrum — Spec trum, n.; pl. {Spectra}. [L. See {Specter}.] 1. An apparition; a specter. [Obs.] [1913 Webster] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed… … The Collaborative International Dictionary of English
Spectrum analysis — Spectrum Spec trum, n.; pl. {Spectra}. [L. See {Specter}.] 1. An apparition; a specter. [Obs.] [1913 Webster] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and… … The Collaborative International Dictionary of English
Fraunhofer lines — [froun′hō΄fər] n. [after Joseph von Fraunhofer (1787 1826), Bavarian optician, who first mapped them accurately] the dark lines visible in the spectrum of the sun or a star … English World dictionary
Fraunhofer's lines — Fraunhofer( s) lines Dark lines crossing the spectrum, from the Bavarian optician Joseph von Fraunhofer (1787–1826) • • • Main Entry: ↑line … Useful english dictionary
Fraunhofer('s) lines — Dark lines crossing the spectrum, from the Bavarian optician Joseph von Fraunhofer (1787–1826) ● line … Useful english dictionary
Fraunhofer — Fraunhofer, Joseph von F., geb. 6. März 1787 zu Straubing in Baiern, trieb erst das Handwerk seines Vaters, eines Glasers, kam dann zu einem Drechsler u. dann zu einem Glasschleifer in München in die Lehre, wurde dort in einem einstürzenden Hause … Pierer's Universal-Lexikon
Fraunhofer lines — Astron. the dark lines of the solar spectrum. [1830 40; named after J. von FRAUNHOFER] * * * In astronomical spectroscopy, dark lines in a star s spectrum caused by selective absorption of its radiation at specific wavelengths by the various… … Universalium
Fraunhofer lines — In physics and optics, the Fraunhofer lines are a set of spectral lines named for the German physicist Joseph von Fraunhofer (1787–1826). The lines were originally observed as dark features (absorption lines) in the optical spectrum of the… … Wikipedia
fraunhofer lines — n.pl. the dark lines visible in solar and stellar spectra. Etymology: J. von Fraunhofer, Bavarian physicist d. 1826 * * * ˈfrau̇nˌhōfə(r) noun Usage: usually capitalized F Etymology: after Joseph von Fraunhofer died 1826 Bavarian optician and… … Useful english dictionary
