A gargoyle is a carved figure that serves as a waterspout, throwing rainwater clear of a building's walls. A grotesque is a similar decorative carving with no drainage function. If it does not carry water, it is technically a grotesque — which means most figures people call gargoyles are not.
The core difference
The difference is plumbing, not appearance.
- gargoyle — a carved waterspout; water passes through a channel and out of the mouth.
- grotesque — a decorative carved figure with no water function. Also called a chimera.
The word explains it
Gargoyle comes from Old French gargouille, throat — the same root as gargle and gurgle. The name is about water passing through a throat, which is exactly the feature that defines the real thing.
Notre-Dame
The famous brooding figures at Notre-Dame de Paris are mostly grotesques, not gargoyles, and most were added during Viollet-le-Duc's nineteenth-century restoration rather than being medieval. The building does have true gargoyles; they are the less photographed ones actually doing the draining.
