Definition of "prodromal" [prod•ro•mal]

• Relating to prodrome; indicating an early stage of a disease. (adjective)

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• "First, the patients identified as prodromal must be at considerable risk of actually going on to develop the full-blown disorder."
• "Reactions to this type of exposure include early symptoms, known as prodromal syndrome, characterized by nausea, vomiting and fatigue, followed by potential skin injury and changes to white blood cell counts and the immune system."
• "Its age of onset is usually in late adolescence or early adulthood, although precursor ( "prodromal") signs of the disorder may begin to manifest themselves some years prior to the first psychotic episode."