fun·gus 
/ˈfʌŋgəs/ noun
plural fun·gi /ˈfʌŋgəs/ noun /ˈfʌnˌʤaɪ, ˈfʌŋˌgaɪ/ also fun·gus·es [count] : any one of a group of related plants (such as molds, mushrooms, or yeasts) that have no flowers and that live on dead or decaying things
