Added 6 October 2026 acraspeda noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about acraspeda at Wordnik → Where our words come from → A group of acalephs that includes most of the larger jellyfish Related Words: jellyfishjelly-fishacanthomorphacanthopteriacanthareanacanthopterygianacanthoptalcyonoidacanthoclinidacanthodidaeglid Back to today's word