poncelet

from The Century Dictionary.

• noun A unit of rate of expenditure of energy, equivalent to 100 kilogrammeters per second.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Physics) A unit of power, being the power obtained from an expenditure of one hundred kilogram-meters of energy per second. One poncelet equals g watts, when g is the value of the acceleration of gravity in centimeters.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun An obsolete French unit of power, equal to the power required to raise a quintal at a velocity of one metre per second.