# Hydra
## Translingual
### Etymology

From Latin Hydra, the mythical serpent.

### Proper noun

Hydra f
* A taxonomic genus within the family Hydridae – predatory freshwater cnidarians, thought not to age, the hydras.

#### Hypernyms

* (genus): Eukaryota – superkingdom; Animalia – kingdom; Cnidaria – phylum; Medusozoa – subphylum; Hydrozoa – class; Hydroida - order; Hydrida - suborder; Hydridae - family

#### Hyponyms

* (genus): Hydra magnipapillata, Hydra oligactis (brown hydra), Hydra viridissima (green hydra), Hydra vulgaris (freshwater hydra) - selected species; for other species see Hydra on Wikipedia.Wikipedia

#### Derived terms

* Protohydra

### References

* Hydra (genus) on Wikipedia.Wikipedia
* Hydra on Wikispecies.Wikispecies
* Hydra (genus) on Wikimedia Commons.Wikimedia Commons
* Hydra at World Register of Marine Species

## English
### Etymology

From Latin Hydra, the mythical serpent, originally from Ancient Greek ὕδρα (húdra), from Proto-Indo-European *údreh₂ (“aquatic”). Doublet of otter.

### Pronunciation

* (UK, US) IPA: /ˈhaɪ̯dɹə/, [ˈhaɪ̯dɹə], [ˈhaɪ̯d͡ʒɹə]

### Proper noun

Hydra
* (Greek mythology) A mythological serpent with many heads, slain by Hercules as one of his twelve labours.
* (astronomy) A spring constellation of the northern sky, said to resemble a serpent. It lies just south of the zodiac and contains the star Alphard.
** 2021, A. K. Blakemore, The Manningtree Witches, Granta Books, page 232:At night I lie dry-eyed on my little bed and turn my head to and fro to catch sight of one little star by one little star along the tail of Hydra, and think you are alive, you survive. Is this not what you wanted?
* (astronomy) One of Pluto's moons.
* One of the Saronic Islands in the Aegean Sea.
* (geography) A commune in Algiers Province, Algeria.

#### Synonyms

* (mythology): Lernaean Hydra; Xiangliu, Xiangyao (Chinese equivalent)
* (astronomy, moon of Pluto): Pluto II, S/2005 P 1, S/2005 P 1 (Hydra), (134340) Pluto II, (134340) Pluto II Hydra, Pluto II (Hydra)

#### Derived terms

* hydra
* Hydrae
* Hydrian

#### Translations
### See also

* (moons of Pluto) Charon, Styx, Nix, Kerberos, Hydra

### Anagrams

* Hardy, hardy

## Czech
### Etymology

From hydra, from Ancient Greek ὕδρα (húdra).

### Pronunciation

* IPA: [ˈɦɪdra]
* Rhymes: -ɪdra
* Hyphenation: Hyd‧ra

### Proper noun

Hydra f
* (Greek mythology, Roman mythology) Hydra, a mythological serpent with seven heads
** 1996, Antonín Rükl, “Hydra”, in Souhvězdí, Praha: Aventinum, →ISBN, page 126:[…] místo každé uťaté hlavy vyrostly Hydře dvě nové. […] instead of every cut-off head two new heads grew up to Hydra.
* (astronomy) Hydra, a spring constellation of the northern sky
** 1996, Antonín Rükl, “Hydra”, in Souhvězdí, Praha: Aventinum, →ISBN, page 126:Alfa Hydrae – Alphard, 2,0 mag, je nejjasnější hvězda v Hydře.Alpha Hydrae – Alphard, 2.0 mag, is the brightest star in the constellation of Hydra.
* (astronomy) Hydra, a moon of Pluto [since 2006]
** 2015 June 12, Petr Lála, “Historická událost: sonda New Horizons zblízka prozkoumá záhadné Pluto”, in Technet.cz‎:Měsíce Hydra, Nix a Styx obíhají ve vzájemné rezonanci, protože za jeden oběh Hydry oběhne Nix právě jeden a půlkrát a Styx dokonce dvakrát.The moons Hydra, Nix and Styx orbit in mutual resonance, as Nix makes exactly one and half an orbit and Styx even two orbits during one orbit of Hydra.
* Hydra, one of the Saronic Islands of Greece in the Aegean Sea
** 1904, “Řecko”, in Ottův slovník naučný‎, volume XXI, Praha: J. Ottl, page 359:Poloostrov Argolský, k němuž přiléhá ostrov Hydra (Hydrea), omezuje záliv Nauplijský […]The Argolid Penninsula, which the island of Hydra (Hydrea) closely borders with, closes the Argolic Gulf […]

#### Alternative forms

* hydra (serpent)

#### Derived terms

* hyderský
* Hydřin

### See also

Solar System in Czech · sluneční soustava (layout · text) :
| Star | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce | Slunce |
| IAU planets and notable dwarf planets | Merkur | Venuše | Země | Mars | Ceres | Jupiter | Saturn | Uran | Neptun | Pluto | Eris |
| Notable moons | — | — | Měsíc | Phobos/Fobos Deimos | — | Io Europa Ganymed Callisto | Mimas Enceladus Tethys Dione Rhea Titan Iapetus | Miranda Ariel Umbriel Titania Oberon | Triton | Charon | Dysnomia |

### Further reading

* “Hydra”, in Kartotéka Novočeského lexikálního archivu (in Czech)
* Hydra (mytologie) on the Czech Wikipedia.Wikipedia $^{cs}$
* Hydra (souhvězdí) on the Czech Wikipedia.Wikipedia $^{cs}$
* Hydra (měsíc) on the Czech Wikipedia.Wikipedia $^{cs}$

### Anagrams

* drahý
* dráhy
* hadry
* hrady

## Finnish
### Etymology

Learned borrowing from Ancient Greek ὕδρα (húdra).

### Pronunciation

* IPA: /ˈhydrɑ/, [ˈhydrɑ̝]
* Rhymes: -ydrɑ
* Hyphenation: Hyd‧ra

### Proper noun

Hydra
* Hydra (mythological serpent)
* (rare) Synonym of Vesikäärme (“constellation Hydra”).
* (astronomy) Hydra (one of Pluto's moons)
* Hydra (one of the Saronic Islands, its municipality and its central town)

#### Declension

Possessive forms of Hydra (Kotus type 9/kala, no gradation) :
first-person singular possessor
singular
plural
nominative
Hydrani
accusative
nom.
Hydrani
gen.
Hydrani
genitive
Hydrani
partitive
Hydraani
inessive
Hydrassani
elative
Hydrastani
illative
Hydraani
adessive
Hydrallani
ablative
Hydraltani
allative
Hydralleni
essive
Hydranani
translative
Hydrakseni
abessive
Hydrattani
instructive
comitative
second-person singular possessor
singular
plural
nominative
Hydrasi
accusative
nom.
Hydrasi
gen.
Hydrasi
genitive
Hydrasi
partitive
Hydraasi
inessive
Hydrassasi
elative
Hydrastasi
illative
Hydraasi
adessive
Hydrallasi
ablative
Hydraltasi
allative
Hydrallesi
essive
Hydranasi
translative
Hydraksesi
abessive
Hydrattasi
instructive
comitative
first-person plural possessor
singular
plural
nominative
Hydramme
accusative
nom.
Hydramme
gen.
Hydramme
genitive
Hydramme
partitive
Hydraamme
inessive
Hydrassamme
elative
Hydrastamme
illative
Hydraamme
adessive
Hydrallamme
ablative
Hydraltamme
allative
Hydrallemme
essive
Hydranamme
translative
Hydraksemme
abessive
Hydrattamme
instructive
comitative
second-person plural possessor
singular
plural
nominative
Hydranne
accusative
nom.
Hydranne
gen.
Hydranne
genitive
Hydranne
partitive
Hydraanne
inessive
Hydrassanne
elative
Hydrastanne
illative
Hydraanne
adessive
Hydrallanne
ablative
Hydraltanne
allative
Hydrallenne
essive
Hydrananne
translative
Hydraksenne
abessive
Hydrattanne
instructive
comitative
third-person possessor
singular
plural
nominative
Hydransa
accusative
nom.
Hydransa
gen.
Hydransa
genitive
Hydransa
partitive
Hydraansa
inessive
Hydrassaan Hydrassansa
elative
Hydrastaan Hydrastansa
illative
Hydraansa
adessive
Hydrallaan Hydrallansa
ablative
Hydraltaan Hydraltansa
allative
Hydralleen Hydrallensa
essive
Hydranaan Hydranansa
translative
Hydrakseen Hydraksensa
abessive
Hydrattaan Hydrattansa
instructive
comitative

## German
### Etymology

From Latin hydra, from Ancient Greek ὕδρα (húdra).

### Pronunciation

* IPA: /ˈhyːdʁa/
* Audio:(file)

### Proper noun

Hydra f
* (Greek mythology) Hydra (mythical serpent)

## Latin
### Etymology

From Ancient Greek ὕδρα (húdra).

### Pronunciation

* (Classical Latin) IPA: /ˈhy.dra/, [ˈhʏd̪rä]
* (modern Italianate Ecclesiastical) IPA: /ˈi.dra/, [ˈiːd̪rä]

### Proper noun

Hydra f sg (genitive Hydrae); first declension
* (Greek mythology) The Hydra (mythical serpent)

#### Declension

First-declension noun, singular only.

#### Descendants

* English: Hydra, hydra
* French: hydre
* German: Hydra
* Italian: idra
* Portuguese: hidra
* Spanish: hidra

### References

* “Hydra”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
* Hydra in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.

## Polish
### Etymology

Learned borrowing from Latin Hydra.

### Pronunciation

* IPA: /ˈxɘ.dra/
* Audio:(file)
* Rhymes: -ɘdra
* Syllabification: Hy‧dra
* Homophone: hydra

### Proper noun

Hydra f
* (Greek mythology) Hydra (mythological serpent with many heads, slain by Hercules as one of his twelve labours)
* (astronomy) Hydra (spring constellation of the northern sky, said to resemble a serpent)

#### Declension
### Further reading

* Hydra in Polish dictionaries at PWN

## Spanish
### Pronunciation

* IPA: /ˈidɾa/ [ˈi.ð̞ɾa]
* Rhymes: -idɾa
* Syllabification: Hy‧dra

### Proper noun

Hydra f
* (astronomy) Hydra (constellation)

## Turkish
### Proper noun

Hydra
* (astronomy) Hydra