Pronounced Pron. HIE-drə
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Contributor Contrib.Dragon_Clarinet on 6/10/2008
Means "water-serpent" in Greek (from hydor "water"). In Greek myth this was the name of a many-headed Lernaean water serpent slain by Hercules. It is also a northern constellation that is said to resemble a serpent, as well as a moon of Pluto.