keycomponent
nounUK /ˌkiː kəmˈpəʊnənt/
US /ˌkiː kəmˈpoʊnənt/
A key component is a very important part of something that makes it work.
The battery is a key component of the toy car.
RELATED WORDS
OTHER MEANINGS
2. The most important piece of a machine or system.
The engine is the key component of the airplane.
3. A necessary part of a plan or idea.
Teamwork is a key component of winning the game.
4. A main ingredient in a recipe or mixture.
Flour is a key component of bread.