All the roads of his speculation start from that nodal point in the story of man.
He was their nodal point, their focus, their expression in a single term.
Every point which he marks is the nodal point for numberless relations.
It was to break the Hindenburg lines at their nodal point in front of Cambrai.
nodal point n.
One of the two points in a compound optical system, located so that a light ray directed through the first point will leave the system through the second point, parallel to its original direction. Also called axial point.