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Hydra (ship)
WordNet
noun
(1) Small tubular solitary freshwater hydrozoan polyp
(2) Trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality
"We may be facing a hydra that defies any easy solution"
(3) A long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer
(4) (Greek mythology) monster with nine heads; when struck off each head was replaced by two new ones
"Hydra was slain by Hercules"
WiktionaryText
Proper noun
Hydra
- : A zoological name at the rank of genus in the family Hydridae. The hydras belong to the genus Hydra.
English
Etymology
From Hydra, the mythical serpent, originally from Ύδρα (hydra)
Proper noun
- A mythological serpent with seven heads, slain by Hercules as one of his twelve labours. Also called the Lernaean Hydra.
- A spring constellation of the northern sky, said to resemble a serpent. It lies just south of the zodiac and contains the star Alphard.
- The name of one of Pluto's moons. (Named 21 June 2006).
Proper noun
Hydra
- The Hydra (mythical serpent)