Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to fortification spectrum: Fortification Figure
the zigzag banding of light, resembling the tops of walls of fortified medieval towns; it marks the margin of the scintillating scotoma of migraine.
for·ti·fi·ca·tion spec·trum(fōr-ti-fi-kā'shŭn spek'trŭm)
The zigzag banding of light, resembling the walls of fortified medieval towns, which marks the margin of the scintillating scotoma of migraine.
fortification spectrum(for?ti-fi-ka'shun spek'trum)
The appearance of a dark patch with a zigzag outline in the visual field, causing a temporary blindness there. Synonym: teichopsia