Look up Hydra or hydra in Wiktionary, the free dictionary. Hydra generally refers to: Lernaean Hydra, a many-headed serpent in Greek mythology Hydra (genus)...

The Lernaean Hydra or Hydra of Lerna (Ancient Greek: Λερναῖα ὕδρα, romanized: Lernaîa Húdrā), more often known simply as the Hydra, is a serpentine lake...

Hydra (/ˈhaɪdrə/ HY-drə) is a genus of small freshwater hydrozoans of the phylum Cnidaria. They are native to the temperate and tropical regions. The...

Hydra, or Ydra or Idra (EE-dra; Greek: Ύδρα, romanized: Ýdra, pronounced [ˈiðra] in Modern Greek, Arvanitika: Nύδρα/Nidhra), and in antiquity Hydrea,...

Hydra (often capitalized as HYDRA) is a fictional terrorist organization appearing in American comic books published by Marvel Comics. Its name alludes...

It can be equipped with a variety of warheads, and in more recent versions, guidance systems for point attacks. The Hydra is widely used by US and allied...

Hydra is a natural satellite of Pluto, with a diameter of approximately 51 km (32 mi) across its longest dimension. It is the second-largest moon of Pluto...

Marvel 1943: Rise of Hydra is an upcoming action-adventure video game developed by Skydance New Media and published by Plaion and is based on Marvel Comics...

Hydra (or THC Hydra) is a parallelized network login cracker built in various operating systems like Kali Linux, Parrot and other major penetration testing...

Hydra vulgaris, the fresh-water polyp, is a small freshwater hydroid with length from 10 mm to 30 mm and width about 1 mm. The hydra have four to twelve...