Added 10 October 2026 rostelliform adjective Categories: Obscure Words Latin root: rostellum Wiktionary adjective ! Definition from Wiktionary (CC BY-SA). More about rostelliform at Wordnik → Where our words come from → Having the form of a rostellum, or small beak. Origin From Latin rostellum + -form. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: rostellaterostraterostriferousrostroidretinulaterhopaloidrostrodorsalradulateoriformprobosciformrotiformracemiform Back to today's word