point source

noun Physics, Optics.

a source of radiation sufficiently distant compared to its length and width that it can be considered as a point.

Origin of point source

First recorded in 1900–05

Words nearby point source

point out, point pleasant, point reyes lilac, point set topology, point shaving, point source, point spread, point success, point system, point the finger at, point tiré

British Dictionary definitions for point source

point source

noun

optics a source of light or other radiation that can be considered to have negligible dimensions

Medical definitions for point source

point source

n.

A source, especially of pollution or radiation, occupying a very small area and having a concentrated output.