/ Thesaurus / X Synonyms of xylariaceae Find synonyms for: Noun1. Xylariaceae, family Xylariaceae, fungus familyusage: family of fungi characterized by dark brown to black sporesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language