masterengine
nounUK /ˈmɑːstərˌɛndʒɪn/
US /ˈmæstərˌɛndʒɪn/
A masterengine is the main machine that makes a big machine or vehicle work.
The ship's masterengine hummed loudly as it pulled away from the dock.
RELATED WORDS
OTHER MEANINGS
2. The central controlling system that coordinates smaller parts in a complex device.
The robot's masterengine told each arm and wheel what to do.
3. A person or team that plans and directs a large project from start to finish.
She was the masterengine behind the school's science fair.
4. A powerful source of energy or motivation that drives an activity.
Curiosity was the masterengine of his endless experiments.