dermatophyte
Medical term for a fungus that causes skin infections such as athlete's foot and ringworm.
Dermatophytes are a type of fungus that causes tinea.
白癬 is the disease (tinea/ringworm) caused by dermatophytes, while 皮膚糸状菌 refers to the fungus itself.
Compound of 皮膚 (skin), 糸状 (thread-like), and 菌 (fungus), describing the thread-like fungal structures that infect the skin.