reactivesite
nounUK /riˈæktɪv saɪt/
US /riˈæktɪv saɪt/
A spot on something that changes when something else touches it.
The scientist marked the reactive site on the molecule with a red dot.
OTHER MEANINGS
2. A place in a computer program that updates itself when data changes.
The dashboard's reactive site refreshed as soon as new numbers arrived.
3. An area of land that responds quickly to changes in weather or use.
The riverbank is a reactive site that shifts after every big storm.
4. A location in a material where a chemical change happens easily.
Rust started at the reactive site where the paint had chipped off.