Added 9 October 2026 acanthomorph noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about acanthomorph at Wordnik → Where our words come from → Any of the fish of the 14,000 species in the clade Acanthomorpha in infraclass Teleostei Related Words: acanthodidacanthopterygianacanthoptacanthopteriacanthuriformacanthodiformacanthopteranacanthoclinidacanthuroidxenacanthimorphacanthuridprotacanthopterygian Back to today's word