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.
Hence: A multifarious evil, or an evil
having many sources; not to be overcome by a single effort.
Any small fresh-water
hydroid of the genus Hydra, usually found attached to sticks,
stones, etc., by a basal sucker.
A southern constellation
of great length lying southerly from Cancer, Leo, and
Virgo.
In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 
