| Foot pound | (Mech.) A unit of energy, or work, being equal to the work done in raising one pound avoirdupois against the force of gravity through a vertical distance of one foot. [ 1913 Webster ] |
| Foot poundal | (Mech.) A unit of energy or work, equal to the work done in moving a body through one foot against the force of one poundal. [ 1913 Webster ] |