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point source
(redirected from Fluid point source)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.02 sec.
point source [′pȯint ‚sȯrs]
(civil engineering)
A municipal or industrial wastewater discharge through a discrete pipe or channel.
(physics)
A source of radiation having definite position but no extension in space; this is an ideal which is a good approximation for distances from the source sufficiently large compared to the dimensions of the source.

point source
A light source whose dimensions are insignificant compared with the distance at which it is used; e.g., a fluorescent lamp is a point source when viewed from a large distance but a line source when viewed close to the source.


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