a unit of work or energy equal to the work done when a force of one poundal moves through a distance of one foot: it is equal to 0.042 14 joule
foot-poundal in American English
(ˈfʊtˌpaʊndəl)
noun
a basic unit of energy or work in the FPS system, equal to the amount of work done by a force of one poundal acting through a distance of one foot (0.0421joule)