point source
noun Date: 1903 1. a source of radiation (as light) that is concentrated at a point and considered as having no spatial extension 2. an identifiable confined source (as a smokestack or wastewater treatment plant) from which a pollutant is discharged or emitted

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • point source — point′ source n. opt phs a source of radiation sufficiently distant compared to its length and width that it can be considered as a point • Etymology: 1900–05 …   From formal English to slang

  • Point source — For other uses, see Point source (disambiguation). A point source is a single identifiable localized source of something. A point source has negligible extent, distinguishing it from other source geometries. Sources are called point sources… …   Wikipedia

  • point source — noun a concentrated source (especially of radiation or pollution) that is spatially constricted • Hypernyms: ↑beginning, ↑origin, ↑root, ↑rootage, ↑source * * * I. noun : a source of light or other radiation that is concentrated at a point …   Useful english dictionary

  • point source — noun a) a source of pollution, radiation, waves, fluid or other substance that has one specific location (and negligible physical extent, distinguishing a point source from other source geometries). In simulations they can often be approximated… …   Wiktionary

  • point source — taškinis šaltinis statusas T sritis automatika atitikmenys: angl. point source vok. Punktquelle, f rus. точечный источник, m pranc. source ponctuelle, f …   Automatikos terminų žodynas

  • point source — taškinis šaltinis statusas T sritis fizika atitikmenys: angl. point source vok. punktförmige Quelle, f; Punktquelle, f rus. точечный источник, m pranc. source ponctuelle, f …   Fizikos terminų žodynas

  • point source — Physics, Optics. a source of radiation sufficiently distant compared to its length and width that it can be considered as a point. [1900 05] * * * …   Universalium

  • point source — In photometry, a very small source of light that is regarded as a geometric point from which light emanates in straight lines in all directions …   Medical dictionary

  • point source — /ˈpɔɪnt sɔs/ (say poynt saws) noun the theoretical concept of a source of radiation which emanates from a point …   Australian English dictionary

  • point source — noun Physics a source of energy, such as light or sound, which can be regarded as having negligible dimensions …   English new terms dictionary

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