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point source
noun
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 using mathematical point sources.
Exact(54)
And a point source will anyway cast a sharper shadow.
A compact, extremely bright central point source is designated Sagittarius A*.
It uses a point source of monochromatic light at the focus of a quality lens.
The oscillating dipole behaves as a point source of emitted radiation.
Point source transmission.
Point source (1-mL sphere) in air.
Similar(6)
"What you normally have is a single-point source, where everything radiates outward".
Sources of water quality contamination include releases of chemical and radionuclide contaminants from point-source and non-point source origins.
AnnAGNPS (Annualized Agricultural Non-Point Source Pollution Model) is a computer model developed to predict non-point source pollutant loadings within agricultural watersheds.
Ag runoff is non-point source (NPS) water pollution.
Industrial agriculture enjoys non-point source pollution exemptions from the Clean Water Act.
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