mucedinous
/mjuːˈsɛdɪnəs/ /mjuːˈsiːdɪnəs/Mycology and Botany. Now rare
adjective
Of the nature of or resembling mould or mildew; white and cottony; (formerly) specifically †designating a fungus of the former family Mucedineae ( obsolete ).
Origin
Mid 19th century; earliest use found in Jabez Hogg (1817–1899), ophthalmic surgeon. From classical Latin mucēdin-, mūcēdo mucus + -ous. Compare uredinous.