Focal point

The term focal point

In the optical system to the point where an optical lens or a concave mirror collect all of the parallel rays of light focus see
Focal point ( chemistry), the temperature at which gases, solids or liquids can ignite and burn by itself on.
Focus ( geometry ) in which the geometry of the focal point of an ellipse, a parabola or a hyperbola,
Deprived, term used in social science in neighborhoods
ARD focal point, a German TV show
Focus ( Museum ), a heating Museum in Vienna
Focal point in a figurative sense, something that is in focus or center of attention