pound-force(redirected from foot-pound-second system)
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A unit of force equal to the weight of one pound-mass in a gravitational field of one gee, about 4.44822 newtons.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.