Added 10 October 2026 physa /ˈfaɪsə/ noun Categories: AnimalsObscure Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about physa at Wordnik → Where our words come from → Any of several species of freshwater snails, included in the family Physidae. Origin From the genus name Physa. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: snailphysid Back to today's word