- A source, especially of pollution or radiation, occupying a very tiny area and achieving a concentrated result.
- a source of pollution, radiation, waves, liquid or other compound that one particular place (and negligible physical level, identifying a point supply from other resource geometries). In simulations they are able to often be approximated utilizing mathematical point sources.
- the abstract concept of a singularity emitting a flux or flow. A source with infinitesimal dimensions in space.
- a concentrated resource (especially of radiation or air pollution) that is spatially constricted
Hypernym for "point source"
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