A metric unit of force, part of the "metre-tonne-second" system sometimes used by European engineers. One sthene is the force required to accelerate a mass of one tonne at a rate of 1 m/s2. Thus the sthene is equal to the kilonewton, so 1 sthene is equivalent to 108 dynes, 224.809 pounds of force or 7233.01 poundals. The name comes from the Greek word sthenos, strength