[foo
t-poun-dl] 
| a foot-pound-second unit of work or energy equal to the work done by a force of one poundal when its point of application moves through a distance of one foot in the direction of the force. Abbreviation: ft-pdl |
| foot-pound·al (fŏŏt'poun'dl) n. A unit of work equal to the work done by a force of one poundal acting through a distance of one foot in the direction of the force. |