magnetoencephalogram

noun
mag·​ne·​to·​en·​ceph·​a·​lo·​gram | \ mag-ˌnēt-ō-in-ˈsef-ə-lə-ˌgram, -ˌnet- How to pronounce magnetoencephalogram (audio) \

Medical Definition of magnetoencephalogram

: a record made by magnetoencephalography