Ephyra n. (Zoöl.) A stage in the development of discophorous medusae, when they first begin to swim about after being detached from the strobila. See Strobila.
... when the folk of Ephyra pour forth my sweet strains by Peneus' side, yet more glorious shall I make their Hippokleas for his crowns and by my songs among his fellows and his elders, and I will make him possess the ... — The Extant Odes of Pindar • Pindar