privileged direction

privileged direction

[′priv·ə·lijd də′rek·shən]
(optics)
One of two mutually perpendicular directions for the plane of polarization of a beam of plane-polarized light falling on a plate of anisotropic material such that the light which emerges from the plate is also plane-polarized.
References in periodicals archive ?
Appreciating the Chinese government's assistance to the earthquake in Indonesia and post-disaster reconstruction, Luhut Binsar Pandjaitan noted that Indonesia's relations with China has always been the privileged direction of Indonesia's foreign relations.
Because of the high shear stress, the peak of the crack can split, going in a privileged direction parallel to the lamina plan.
In this volume, Grandis (mathematics, University of Genoa) explores the new field of directed algebraic topology, which is distinguished from classical algebraic topology by the principle that directed spaces have privileged directions and directed paths in these spaces need not be reversible.