It's possible you meant "calefaction" which refers to the process of rapid heating, often to the point of vaporization, by direct contact with a very hot surface. This can happen with water, but it's not a specific water-related process with a dedicated name.
Here's what you might be thinking about:
* Boiling: This is the process where liquid water turns into water vapor due to heat. It happens at 100°C (212°F) at standard atmospheric pressure.
* Superheating: Water can be heated beyond its boiling point without boiling if the heating is done carefully and the water is free of nucleation sites (points where bubbles can form). This is a delicate process and the water can explode violently if disturbed.
* The Leidenfrost Effect: When a liquid comes into contact with a surface significantly hotter than its boiling point, a vapor layer forms, insulating the liquid and preventing rapid boiling. This is the effect that lets you briefly touch a hot pan with a drop of water.
If you can provide more context, I might be able to help you understand what you're looking for.
