rootcause
nounUK /ˈruːt kɔːz/
US /ˈruːt kɔːz/
The main reason something happens.
The rootcause of the fire was a broken wire.
OTHER MEANINGS
2. The deepest reason behind a problem that must be fixed.
Engineers searched for the rootcause of the machine failure.
3. The starting point from which a chain of events begins.
Poor sleep was the rootcause of his bad mood.
4. In science, the basic factor that produces a result.
Scientists found the rootcause of the strange smell in the water.