plural of optical

An image that is visually deceptive or misleading.

(neuroanatomy) Each of the second pair of cranial nerves that carry visual information from the retina to the brain.

Op art.

(telecommunications) A switch that can selectively change signals between optical fibers or integrated optical circuits.

(astronomy, optics) An optical system in telescopes that reduces atmospheric distortion by dynamically measuring and correcting wavefront aberrations in real time, often by using a deformable mirror.

plural of optical illusion

(optics) A method of designing optical systems in which the conformation of the lenses is chosen to optimize its interaction with the local environment

(chemistry, of a crystal or compound) Exhibiting optical activity.

(physics) a property caused by asymmetrical molecular or crystal structure that enables a compound or crystal to rotate the plane of incident polarized light