10 letters · 19 points in Scrabble
noun any fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascus
originFrom the taxonomic name Ascomycetes (older synonym of Ascomycota) reanalyzed as a plural common noun; by surface analysis, asco- + -mycete.
Etymology from Wiktionary, CC BY-SA 3.0