All 9 Uses of

serpent
in
The Hunchback of Notre Dame

"The mystery, and to the devil with the Flemings!" he exclaimed at the full force of his lungs, twining like a serpent around his pillar.†
Chpt 1.1.1 *

serpent = snake

However, admirable as the Paris of to-day may seem to you, reconstruct the Paris of the fifteenth century, call it up before you in thought; look at the sky athwart that surprising forest of spires, towers, and belfries; spread out in the centre of the city, tear away at the point of the islands, fold at the arches of the bridges, the Seine, with its broad green and yellow expanses, more variable than the skin of a serpent; project clearly against an azure horizon the Gothic profile of this ancient Paris.†
Chpt 1.3.2

The antique symbol of the serpent biting its tail is, above all, applicable to science.†
Chpt 1.4.5

It is the mode of expression of humanity which is totally renewed; it is human thought stripping off one form and donning another; it is the complete and definitive change of skin of that symbolical serpent which since the days of Adam has represented intelligence.†
Chpt 1.5.2

The young girl looked at him again, then she blushed as though a flame had mounted into her cheeks, and, taking her tambourine under her arm, she made her way through the astonished spectators towards the door of the house where Phoebus was calling her, with slow, tottering steps, and with the troubled look of a bird which is yielding to the fascination of a serpent.†
Chpt 2.7.1

It was, in truth, a spectacle worthy of a more intelligent spectator than Phoebus, to see how these beautiful maidens, with their envenomed and angry tongues, wound, serpent-like, and glided and writhed around the street dancer.†
Chpt 2.7.1

At last it reached the ground, the horrible cry arose, and the black beam, as it rebounded from the pavement, resembled a serpent leaping.†
Chpt 2.10.4

At the sight of this line of cuirassed backs, undulating as they rose through the gloom, one would have pronounced it a serpent with steel scales, which was raising itself erect in front of the church.†
Chpt 2.10.4

Definitions:

(1) (serpent)
a snake
(2) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

For less common senses of "serpent", see a comprehensive dictionary.