chiefengine
nounUK /tʃiːf ˈɛndʒɪn/
US /tʃif ˈɛndʒɪn/
The main engine that makes a big machine or ship go.
The ship's chiefengine roared to life as it left the harbor.
RELATED WORDS
OTHER MEANINGS
2. The most important power source in a system or factory.
The chiefengine of the factory kept all the machines running.
3. A person who leads a team of engineers.
As chiefengine, she made sure every part was built correctly.
4. The strongest or most active part of something.
Curiosity is the chiefengine of learning.