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2 definitions found
 for poundal
From The Collaborative International Dictionary of English v.0.48 :

  Poundal \Pound"al\, n. [From 5th Pound.] (Physics & Mech.)
     A unit of force based upon the pound, foot, and second, being
     the force which, acting on a pound avoirdupois for one
     second, causes it to acquire by the of that time a velocity
     of one foot per second. It is about equal to the weight of
     half an ounce, and is 13,825 dynes.
     [1913 Webster]

From WordNet (r) 3.0 (2006) :

      n 1: a unit of force equal to the force that imparts an
           acceleration of 1 foot/sec/sec to a mass of 1 pound; equal
           to 0.1382 newtons [syn: poundal, pdl]

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