dermatophytePronunciation: /ˈdəːmətə(ʊ)fʌɪt/Definition of dermatophyte noun a pathogenic fungus that grows on skin, mucous membranes, hair, nails, feathers, and other body surfaces, causing ringworm and related diseases. Trichophyton and other genera, subdivision Deuteromycotina Derivatives dermatophyticPronunciation: /-ˈfɪtɪk/ adjective dermatophyte in other Oxford dictionaries Definition of dermatophyte in the US English dictionary