Added 9 October 2026 excrudescence noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about excrudescence at Wordnik → Where our words come from → A symbolic abnormal outgrowth. Related Words: excrescencysuperexcrescenceexcrescentextumescenceoutgrowthexacerbescenceextuberanceerethismexcessionoutbreakingoverrashnessresurgent Back to today's word