point source

A source, especially of pollution or radiation, occupying a very small area and having a concentrated output.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

point source

(General Physics) optics a source of light or other radiation that can be considered to have negligible dimensions

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

point′ source`

a source of radiation sufficiently distant compared to its length and width that it can be considered as a point.

[1900–05]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

point source - a concentrated source (especially of radiation or pollution) that is spatially constricted

origin, source, root, rootage, beginning - the place where something begins, where it springs into being; "the Italian beginning of the Renaissance"; "Jupiter was the origin of the radiation"; "Pittsburgh is the source of the Ohio River"; "communism's Russian root"

Translations

point source

n (Phys) → Punktquelle f, → punktförmige Lichtquelle

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

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References in periodicals archive

"What we've learned in working closely with our customers is that no two mic'ing situations are the same; the smallest variable can make one mic selection perfect in one situation, and a disaster in another," said Yvonne Ho, sales and marketing VP for Point Source Audio.

A New World of Body-Worn Mics

Dominion also contends that the district court erred in concluding that the landfill and each of the settling ponds constituted a "point source," as required to find it liable under 1311(a) of the Clean Water Act.

Dominion Energy prevails in Clean Water Act appeal

Sakr, "Analytical formulae to calculate the solid angle subtended at an arbitrarily positioned point source by an elliptical radiation detector," Nuclear Instruments and Methods in Physics Research Section A, vol.

Calibration of the Absolute Efficiency of Well-Type NaI(Tl) Scintillation Detector in 0.121-1.408 MeV Energy Range

A continuous wave point source is placed at (41,-7.996) on the lower side of the PC slab (Fig.

Developing the image quality of the two dimensional photonic crystal slab by modifying shape of the photonic crystal

"point source." This is because most of the effective

CIRCLING THE DRAIN: REGULATING NUTRIENT POLLUTION FROM AGRICULTURAL SOURCES

Step 2 (identification of internal point source pollution).

A Method for Identifying Pollution Sources of Heavy Metals and PAH for a Risk-Based Management of a Mediterranean Harbour

This paper presents the full-energy peak efficiency calibration of a 40% p-type HPGe detector for point source, Marinelli beaker, and cylindrical container geometries.

Experimental Investigation on the Photopeak Efficiency of a Coaxial High Purity Germanium Detector for Different Geometries

"point source" discharges that are subject to section 402 of

Enough is enough! Stormwater discharged from man-made pipes, ditches, and channels along logging roads is not nonpoint source "natural runoff"

The hologram is illuminated by a white-light point source, such as a halogen bulb or LED.

Launches non-contact controls

Point source load allocations to meet TMDLs are enforced through water quality-based effluent limits that are in addition to the technology-based standards.

Local innovations in water protection: experiments with economic incentives