point source

noun

Definition of point source

1 : a source of radiation (such as light) that is concentrated at a point and considered as having no spatial extension
2 : an identifiable confined source (such as a smokestack or wastewater treatment plant) from which a pollutant is discharged or emitted

Recent Examples of point source from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'point source.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of point source

1894


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