- noun the cgs unit of force, equivalent to 10–5 newtons
- A unit of force required to accelerate one gram of mass at a rate of 1 cm per second. See also acoustics.
- The unit of force in the cgs system. It is equal to the force that accelerates a mass of one gram at the rate of one centimeter per second, per second. It is equal to 1-5 new-ton. Its abbreviation is dyn.