fungoid Syllabification: (fun·goid)Pronunciation: /ˈfəNGˌgoid/Definition of fungoid adjective of or caused by a fungus or fungi:she suffered from a fungoid disease of her feet resembling a fungus in shape, texture, or speed of growth:his skin looked moist and fungoid noun a fungoid plant. fungoid in other Oxford dictionaries Definition of fungoid in the British & World English dictionary