yəˌred ə nˈā(ˌ)lēz, -rēd- noun plural
Usage: capitalized
Etymology: New Latin, from Uredin-, Uredo + -ales
: an order of parasitic fungi (class Basidiomycetes) that cause rusts in plants, have complex life cycles involving usually pycnial, aecial, uredinial, and telial stages often on different hosts, and are distinguished from the smuts by producing on a sterigma basidiospores which germinate not by budding but by growing out into an infective hypha