nodal point


Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.

no·dal point

one of two points in a compound optic system so related that a ray directed toward the first point will appear to have passed through the second point parallel to its original direction.
Synonym(s): axial point

no·dal point

(nō'dăl poynt)
One of two points in a compound optic system so related that a ray directed toward the first point will appear to have passed through the second point parallel to its original direction.
Synonym(s): axial point.

nodal point

Either of a pair of points situated on the axis of an optical system so that any incident ray sent through one will produce a parallel emergent ray sent through the other.
See also: point
References in periodicals archive ?
In contrast, the elements with which a discourse is identified form its "nodal points" or what Lacan calls the point de capiton: nodal points are the sedimented and "privileged signifiers that fix the meaning of a signifying chain" (Laclau and Mouffe, Hegemony and 112).
This means that, if feminist politics is based on the nodal point 'human rights', the subjectified structures hinder it and prevent realisation of the hegemonic project.
When considering the nation as a nodal point, Anglo-Australian and non-dominant cultural identities feature to discursively negotiate the nation in a number of ways.
How: Vapi, which is well connected by train to Vadodara, is the nodal point to enter Daman from where it is only 10 km away.
As the book describes, the Zionists controlled every nodal point of the 9/11 cover-up.
The adjustment has been made with a fixed point in the centre of Poland so that it appeared as a nodal point in all three versions of the adjustment.
It might not be out of context to remind ourselves that a high level panel appointed by Annan, for outlining the challenges faced by the UN, have given their nod for the use of brute force in some situations to prevent a threat from becoming imminent with a rider that the Security Council be made the nodal point for threat assessment.
Meanwhile, office bearers of RCCI and other traders gathered at a nodal point in the city to stage a formal protest on this issue.
Discrete analysis is based on the equilibrium of the balanced condition composed for every nodal point of the cable.
It is a nodal point receiving feedback through various access mechanisms and coordinating 24x7 assistance on any sales/ service/ product issues and spares parts availability to all customers across India.
Here as well, we were encouraged to relate the work of art, already at several steps' remove from its final state, to a range of outlying or wholly non-art contexts, and to treat the gallery as just another nodal point in a much broader social and economic network.