Meaning of serpent

ser•pent

1. a snake.
2. a wily, treacherous, or malicious person.
3. the Devil; Satan. Gen. 3:1–5.
4. a firework that burns with serpentine motion or flame.
5. an obsolete wooden wind instrument with a serpentine shape and a deep, coarse tone. Cf.
6. (cap.)the constellation Serpens.