noun Physics.
- a meter-kilogram-second unit of work or energy, equal to the work done by a force of one kilogram when its point of application moves through a distance of one meter in the direction of the force; approximately 7.2 foot-pounds. Abbreviation: kg-m
n.
- A unit of energy and work in the meter-kilogram-second system, equal to the work performed by a one-kilogram force acting through a distance of one meter.