Definitions for "Point source"
A single isolated stationary source of pollution.
A single direct source of a contaminant such as an oil spill or sewage outfall. Contrasts with diffuse source.
A discernible, confined and discrete conveyance such as a pipe, ditch or channel, tunnel, conduit, well container, concentrated animal feeding operation or vessel, from which pollutants are or may be discharged. Does not include agricultural storm water discharges and return flows from irrigated agriculture.
a depletion nutrient widget specific location or depletion nutrient widget point
a specific location or point of entry,
Keywords:  idealization
an idealization
a lamp or fixture that is relatively small compared to the area it is lighting and has the potential to direct a concentrated beam of light on a specific surface or object