Word.ws English Dictionary

Plural of hydra

regular plural

The plural of hydra is hydras or hydrae.

Forms of hydra

Singularhydra /ˈhaɪdɹə/
Pluralhydras
hydrae
Countablecountable

Meaning of hydra

  1. noun A dragon-like creature with many heads and the ability to regrow them when maimed.
  2. noun Any of several small freshwater polyps of the genus Hydra and related genera, having a naked cylindrical body and an oral opening surrounded by tentacles.
  3. noun A complex, multifarious problem or situation that cannot be easily and rapidly solved.

Full definition of hydra

Questions about the plural of hydra

What is the plural of hydra?
The plural of hydra is hydras or hydrae.
Which is correct, hydras or hydrae?
Both are used. hydras is the more common of the two in English writing.
Is hydra countable?
Hydra is a countable noun.

Source and license

Adapted from Wiktionary: hydra (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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