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Hydra

proper nounattested in dialogue

  • United Kingdom//ˈhaɪ̯dɹə//
  • United Kingdom/[ˈhaɪ̯dɹə]/
  • United Kingdom/[ˈhaɪ̯d͡ʒɹə]/

A mythological serpent with many heads, slain by Hercules as one of his twelve labours.

proper noun

  1. 1

    A mythological serpent with many heads, slain by Hercules as one of his twelve labours.

  2. 2

    A spring constellation of the northern sky, said to resemble a serpent. It lies just south of the zodiac and contains the star Alphard.

    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?

  3. 3

    One of Pluto's moons.

  4. 4

    One of the Saronic Islands in the Aegean Sea.

  5. 5

    A commune in Algiers Province, Algeria.

Etymology

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

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).