magneto-optic

adjective

mag·​ne·​to-op·​tic mag-ˌnē-tō-ˈäp-tik 

-ˌne-

variants or less commonly magneto-optical

mag-ˌnē-tō-ˈäp-ti-kəl 

-ˌne-

: of, relating to, or utilizing the influence of a magnetic field upon light

a magneto-optic disk drive

magneto-optics

mag-ˌnē-tō-ˈäp-tiks 

-ˌne-

noun, plural in form but singular or plural in construction

Word History

First Known Use

1848, in the meaning defined above