Pronunciation: mag- ˌ n ē -t ō - ' äp-tik, - ˌ ne-
Variant: also mag · ne · to-op · ti · cal \ -ti-k ə l \
Function: adjective
Date: 1848
: of, relating to, or utilizing the influence of a magnetic field upon light <a magneto-optic disk drive>
– mag · ne · to-op · tics \ -tiks \ noun plural but singular or plural in construction