English noun: Hydra |
1. | Hydra (person) (Greek mythology) monster with nine heads; when struck off each head was replaced by two new ones |
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| Samples | Hydra was slain by Hercules.
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| Broader (hypernym) | mythical creature, mythical monster |
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| Domain category | Greek mythology |
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2. | Hydra (object) a long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer |
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| Synonyms | Snake |
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| Instance hypernym | constellation |
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3. | hydra (cognition) trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality |
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| Samples | We may be facing a hydra that defies any easy solution.
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| Broader (hypernym) | problem, trouble |
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4. | hydra (animal) small tubular solitary freshwater hydrozoan polyp |
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| Broader (hypernym) | hydroid, hydrozoan |
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| Member meronym | genus Hydra |
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