A dyne is a unit of force specified in the centimetre-gram-second (CGS) system of units, which is a predecessor of the modern SI. It is defined as "the force required to accelerate a mass of one gram at a rate of one centimetre per second squared" or "that force which, acting for one second, will produce a change of velocity of one centimetre per second in a mass of one gram". One dyne is equal to 10 micronewtons or 10^-5 newtons.
Dyne testing, on the other hand, is a method for measuring the wetting tension of a solid by spreading a liquid with a known surface tension across the solids surface. It is based on the concept of surface energy or wettability, which is directly related to a surfaces adhesive potential. Dyne testing is commonly used in manufacturing environments where materials are tested before adhesion processes like bonding, sealing, coating, painting, and printing.
Finally, Dyne is also the name of a high-calorie liquid nutritional supplement for dogs and puppies that provides additional calories for active dogs and puppies needing extra nutrition.
