Hydra Hy"dra, n.; pl. E. {Hydras}, L. {Hydr[ae]}. [L. hydra, Gr. "y`dra; akin to "y`dwr water. See {Otter} the animal, {Water}.] 1. (Class. Myth.) A serpent or monster in the lake or marsh of Lerna, in the Peloponnesus, represented as having many heads, one of which, when cut off, was immediately succeeded by two others, unless the wound was cauterized. It was slain by Hercules. Hence, a terrible monster. [1913 Webster]

Gorgons, and Hydras, and Chimeras dire. --Milton. [1913 Webster]

2. Hence: A multifarious evil, or an evil having many sources; not to be overcome by a single effort. [1913 Webster]

3. (Zo["o]l.) Any small fresh-water hydroid of the genus {Hydra}, usually found attached to sticks, stones, etc., by a basal sucker. [1913 Webster]

Note: The body is a simple tube, having a mouth at one extremity, surrounded by a circle of tentacles with which it captures its prey. Young hydras bud out from the sides of the older ones, but soon become detached and are then like their parent. Hydras are remarkable for their power of repairing injuries; for if the body be divided in pieces, each piece will grow into a complete hydra, to which fact the name alludes. The zooids or hydranths of marine hydroids are sometimes called hydras. [1913 Webster]

4. (Astron.) A southern constellation of great length lying southerly from Cancer, Leo, and Virgo. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

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  • R Hydrae — Onda de proa (Bow Shock) en torno a R Hydrae. Constelación …   Wikipedia Español

  • Gamma Hydrae — Constelación Hidra Ascensión recta α 13h 18min 55,25s Declinación δ 23º 10’ 17,1’’ Distancia …   Wikipedia Español

  • TW Hydrae — Constelación Hidra Ascensión recta α 11h 01min 51,91s Declinación δ 34º 42’ 17,0’’ Distancia …   Wikipedia Español

  • TW Hydrae — Datenbanklinks zu TW Hydrae Stern TW Hydrae …   Deutsch Wikipedia

  • TW Hydrae b — TW Hydrae TW Hydrae est l étoile variable de type T Tauri la plus proche du Soleil, située à 56 parsecs dans la constellation de l’Hydre. TW Hydrae n’est âgée que de 5 à 10 millions d années. L étoile dispose d’un disque protoplanétaire de… …   Wikipédia en Français

  • Beta Hydrae — Saltar a navegación, búsqueda Beta Hydrae A/B Constelación Hidra Ascensión recta α 11h 52min 54.52s Declinación δ 33º 54’ 29.2’’ …   Wikipedia Español

  • Ni Hydrae — Constelación Hidra Ascensión recta α 10h 49min 37,5s Declinación δ 16º 11’ 37’’ Distancia …   Wikipedia Español

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