[¦flē‚al·ər·jē ‚dər·mə′tīd·əs] (veterinary medicine) Inflammation of the skin of small pets (dogs, cats, and ferrets) that results from an allergic reaction to protein substances deposited on or under the surface of the skin at the time of flea feeding. Also known as flea-bite dermatitis.SeeFASCAL Absolute DetectorSeeFAD