Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun point_source

1 sense of point source

Sense 1
point source -- (a concentrated source (especially of radiation or pollution) that is spatially constricted)
       => beginning, origin, root, rootage, source -- (the place where something begins, where it springs into being; "the Italian beginning of the Renaissance"; "Jupiter was the origin of the radiation"; "Pittsburgh is the source of the Ohio River"; "communism's Russian root")