microscope

microscope
Achromatic Ach`ro*mat"ic, a. [Gr. ? colorless; 'a priv. + ?, ?, color: cf. F. achromatique.] 1. (Opt.) Free from color; transmitting light without decomposing it into its primary colors. [1913 Webster]

2. (Biol.) Uncolored; not absorbing color from a fluid; -- said of tissue. [1913 Webster]

{Achromatic lens} (Opt.), a lens composed usually of two separate lenses, a convex and concave, of substances having different refractive and dispersive powers, as crown and flint glass, with the curvatures so adjusted that the chromatic aberration produced by the one is corrected by other, and light emerges from the compound lens undecomposed.

{Achromatic prism}. See {Prism}.

{Achromatic telescope}, or {microscope}, one in which the chromatic aberration is corrected, usually by means of a compound or achromatic object glass, and which gives images free from extraneous color. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • microscope — [ mikrɔskɔp ] n. m. • 1656; lat. mod. microscopium (1618), du gr. ♦ Instrument d optique qui permet de voir des objets invisibles à l œil nu grâce à un système de lentilles. Microscope qui grossit mille fois. Étude, examen des objets visibles au… …   Encyclopédie Universelle

  • Microscope — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom …   Wikipédia en Français

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  • Microscope — Mi cro*scope, n. [Micro + scope.] An optical instrument, consisting of a lens, or combination of lenses, for making an enlarged image of an object which is too minute to be viewed by the {naked eye}. [1913 Webster] {Compound microscope}, an… …   The Collaborative International Dictionary of English

  • Microscope — ist der Name eines Kleinsatelliten, den Frankreich 2012 in eine sonnensynchrone Umlaufbahn in 710 km Höhe bringen will. Er soll das Äquivalenzprinzip mit einer Genauigkeit, die besser ist als 10 15, überprüfen. Dazu trägt er zwei Körper aus… …   Deutsch Wikipedia

  • microscope — [mī′krə skōp΄] n. [ModL microscopium: see MICRO & SCOPE] an instrument consisting essentially of a lens or combination of lenses, for making very small objects, as microorganisms, look larger so that they can be seen and studied: see also… …   English World dictionary

  • microscope — (n.) 1650s, from Mod.L. microscopium, lit. an instrument for viewing what is small, from Gk. micro (see MICRO (Cf. micro )) + skopion, from skopein to look, see (see SCOPE (Cf. scope)) …   Etymology dictionary

  • microscope — MICROSCOPE. s. m. Terme pris du Grec. On appelle ainsi un instrument qui grossit tellement les objets par la disposition du verre au travers duquel on les regarde, qu on en distingue aisément jusqu aux moindres petites parties …   Dictionnaire de l'Académie française

  • microscope — ► NOUN ▪ an optical instrument for magnifying very small objects. ORIGIN from Greek mikros small + skopein look at …   English terms dictionary

  • microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …   Universalium

  • Microscope — This article is about microscopes in general. For light microscopes, see optical microscope. Microscope Us …   Wikipedia

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