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hydra

nounattested in dialogue

  • //ˈhaɪdɹə//

A dragon-like creature with many heads and the ability to regrow them when maimed.

noun

  1. 1

    A dragon-like creature with many heads and the ability to regrow them when maimed.

  2. 2

    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. 3

    figurativeA complex, multifarious problem or situation that cannot be easily and rapidly solved.

    Because the statute is so vaguely worded, award decisions are habitually based on case law, the growing mountain of which is a hydra of rulings that point in so many directions that almost any decision can be defended or overturned on appeal, depending on how smart your lawyer is and which precedent he selects to argue your case.

Etymology

After the Hydra, from Greek mythology, which grew two new heads every time one of its heads was cut off. The biology sense alludes to the budding method of asexual reproduction that the hydra practices, similar to growing new heads. The figurative sense refers to how the creature could not be killed by a swift, decisive solution (in contrast to a Gordian knot).

Forms

plural
hydras, hydrae, hydræ
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).