Definition
In electric power generation a combined cycle is an assembly of heat engines that work in tandem from the same source of heat, converting it into mechanical energy, which in turn usually drives electrical generators.
Abbreviation
CCGT
Synonyms
NGCC
Superterms
Subterms
Sources
https://en.wikipedia.org/wiki/Combined_cycle
Usually, we understand a CCGT as an [Open Cycle Gas Turbine] which exhaust gases are used to drive a conventional Clausius-Rankine-Steam Circuit.