nodal point

nounOptics.

either of two points on the axis of a lens or other optical system, determined by extending an incident oblique ray and the corresponding refracted ray to the axis for the pair of rays that are parallel outside the optical system.

Origin of nodal point

First recorded in 1835–45

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

India’s new IT rules, unveiled in February this year, require firms to appoint and share contact details of representatives tasked with compliance, nodal point of reference and grievance redressals to address on-ground concerns.
Facebook, WhatsApp, Google and other internet giants comply with India’s IT rules | Manish Singh | May 28, 2021 | TechCrunch
At each nodal-point of the hexagon arises one short conical papilla or thorn.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) | Ernst Haeckel
At each nodal-point arises a bristle-shaped radial spine, about as long as the radius.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) | Ernst Haeckel
Often each nodal-point of the network develops on the shell surface one spine.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) | Ernst Haeckel
At each nodal-point of the hexagon arises a short bristle-shaped, simple by-spine.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) | Ernst Haeckel

Browse