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metric unit of force, 1873, from German use of Greek dynamis "power" (see dynamic (adj.)); perhaps also influenced by French dyne, which had been proposed c.1842 as a unit of force in a different sense.
A centimeter-gram-second unit of force, equal to the force required to impart an acceleration of one centimeter per second per second to a mass of one gram.
unit of force in the centimetre-gram-second system of physical units, equal to the force that would give a free mass of one gram an acceleration of one centimetre per second per second. One dyne equals 0.00001 newton.