All 6 Uses

serpent
in
Flags of Our Fathers
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—DOC BRADLEY IT HULKED ABOVE THEM STILL, before daybreak on the fifth morning, this primitive serpent's head that had struck them down in swaths.†
Chpt 11. *

serpent = snake
The serpent's head lay mute and enigmatic.†
Chpt 11.
The serpent lay dormant; the hostile fire never materialized.†
Chpt 11.
No one was ready to believe that the serpent had finished striking.†
Chpt 11.
The serpent was not completely dead after all.†
Chpt 11.
—JOHN BODKIN, THE AP PHOTO EDITOR IN GUAM THE EXHAUSTED CONQUERORS of Mount Suribachi spent the ensuing four days resting on the brittle skin of the dead serpent.†
Chpt 12.

Definitions:

(1) (serpent)
a snake
(2) (meaning too rare to warrant focus)
For less common senses of "serpent", see a comprehensive dictionary.