Source : Webster's Revised Unabridged Dictionary (1913)

Dyne \Dyne\, n. [Formed fr. Gr. ? power. See {Dynamic}.]
   (Physics)
   The unit of force, in the C. G. S. (Centimeter Gram Second)
   system of physical units; that is, the force which, acting on
   a gram for a second, generates a velocity of a centimeter per
   second.

Source : WordNet®

dyne
     n : a unit of force equal to the force that imparts an
         acceleration of 1 cm/sec/sec to a mass of 1 gram