ra·phid·i·an I. \rəˈfidēən\adjective orra·phid·i·id\rəˈfidēə̇d\ Etymology:raphidian from New Latin Raphidium + English -an; raphidiid from New Latin Raphidiidae : of or relating to the Raphidiidae II. noun orraphidiid\“\ (-s) : an insect of the family Raphidiidae