[foo
t-pound-sek-uhnd] 
| of or pertaining to the system of units in which the foot, pound, and second are the principal units of length, mass, and time. Abbreviation: fps, f.p.s. |
| foot-pound-sec·ond (fŏŏt'pound'sěk'ənd) adj. Abbr. fps Of, relating to, or characteristic of the U.S. Customary and British Imperial systems of measurement based on the foot, the pound, and the second as the fundamental units of length, mass, and time. |