Main Entry: ver·ti·go Pronunciation: 'v&rt-i-"gO Function: noun Inflected Form: plural-goesor-gos 1: a disordered state which is associated with various disorders (as of the inner ear) and in which the individual or the individual's surroundings seem to whirl dizzily —see OBJECTIVE VERTIGO, SUBJECTIVE VERTIGO;—compare DIZZINESS 2: disordered vertiginous movement as a symptom of disease in lower animals;also: a disease (as gid) causing this