aspherical
adjective see aspheric

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Aspherical — may refer to:* Aspherical space, a concept in topology * Aspherical lens, a type of lens assembly used in photography which contains an aspheric lens …   Wikipedia

  • aspherical — /ay sfer i keuhl/, adj. Optics. (of a reflecting surface or lens) deviating slightly from a perfectly spherical shape and relatively free from aberrations. Also, aspheric. [1920 25; A 6 + SPHERICAL] * * * …   Universalium

  • aspherical — adjective Not (quite) spherical …   Wiktionary

  • aspherical — adjective not spherical. Derivatives aspheric adjective …   English new terms dictionary

  • aspherical — a•spher•i•cal [[t]eɪˈsfɛr ɪ kəl, eɪˈsfɪər [/t]] also a•spher′ic adj. opt (of a reflecting surface or lens) deviating slightly from a perfectly spherical shape and relatively free from aberrations • Etymology: 1920–25 …   From formal English to slang

  • aspherical —   a. (of lens, etc.) free from spherical aberration …   Dictionary of difficult words

  • aspherical — adjective varying slightly from a perfectly spherical shape • Syn: ↑aspheric • Similar to: ↑rounded • Topics: ↑optics …   Useful english dictionary

  • Aspherical space — In topology, an aspherical space is a topological space with all higher homotopy groups equal to {0}. If one works with CW complexes, one can reformulate this condition: an aspherical CW complex is a CW complex whose universal cover is… …   Wikipedia

  • aspherical mirror — asferinis veidrodis statusas T sritis fizika atitikmenys: angl. aspherical mirror vok. asphärischer Spiegel, m rus. асферическое зеркало, n pranc. miroir asphérique, m …   Fizikos terminų žodynas

  • Superzoom — The term hyperzoom or superzoom is used to advertise photographic zoom lenses with unconventionally large focal length factors, typically more than 4× and ranging up to 15×, e.g., 35 mm to 350 mm. The largest ratio for digital SLR cameras is held …   Wikipedia

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