Definition of ascomycete
noun (plural ascomycetes /-ˈmʌɪsiːts, -mʌɪˈsiːtiːz/)Botany
- a fungus whose spores develop within asci (cylindrical sacs). They include most moulds, mildews, and yeasts, the fungal component of most lichens, and a few large forms such as morels and truffles. Compare with basidiomycete.
- Subdivision Ascomycotina (formerly class Ascomycetes): several classes
mid 19th century: from modern Latin Ascomycetes (former class name), from Greek askos 'sac' + mukētes 'fungi'