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.
A dragon-like creature with many heads and the ability to regrow them when maimed.
A complex, multifarious problem or situation that cannot be solved easily and rapidly.
To cause severe suffering to (stronger than to vex but weaker than to torture.)
Any extreme pain, anguish or misery, either physical or mental.
Torture, originally as inflicted by an instrument of torture.