adjective Date: 1867 having the same foci <
confocal ellipses
confocal lenses
confocally adverb

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Confocal — Con*fo cal, a. (Math.) Having the same foci; as, confocal quadrics. [1913 Webster] …   The Collaborative International Dictionary of English

  • confocal — adj. m. TECH Microscope confocal: microscope à balayage laser permettant de réaliser des coupes optiques dans l épaisseur d un échantillon sans le couper, les images ainsi produites étant ensuite traitées par un ordinateur pour aboutir à une… …   Encyclopédie Universelle

  • Confocal — (v. lat.), was einen gemeinschaftlichen Brennpunkt hat, so confocale Linien …   Pierer's Universal-Lexikon

  • Confocal — Confocal, lat., Linien mit gemeinschaftlichem Brennpunkt …   Herders Conversations-Lexikon

  • confocal — [kän fō′kəl] adj. Math. having the same focus or focuses …   English World dictionary

  • Confocal — In geometry, confocal means having the same foci. For an optical cavity consisting of two mirrors, confocal means that they share their foci. If they are identical mirrors, their radius of curvature, Rmirror, equals L, where L is the distance… …   Wikipedia

  • confocal — See c. microscope. * * * con·fo·cal ( )kän fō kəl adj having the same foci <confocal lenses> con·fo·cal·ly kə lē adv * * * con·fo·cal (kon foґkəl) having the same focus …   Medical dictionary

  • confocal — (ˈ)kän+ adjective Etymology: com + focal mathematics : having the same real or imaginary foci used of conic sections and of conicoids whose principal sections are confocal conics …   Useful english dictionary

  • confocal — /kon foh keuhl/, adj. Math. having the same focus or foci. [1865 70; CON + FOCAL] * * * …   Universalium

  • confocal — adjective Having the same foci …   Wiktionary

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