The opossum (also called possum) is the only marsupial (female with a pouch) in North America. They are about the size of a cat, have black to gray fur, and long, pointed noses (pink in color). Opossums have many teeth, more than any other land mammal, and a prehensile tail, one that can grasp or hold.
Webster Dictionary(1.00 / 1 vote)Rate this definition: Dissemination(noun) the act of disseminating, or the state of being disseminated; diffusion for propagation and permanence; a scattering or spreading abroad, as of ideas, beliefs, etc. Origin: [L. disseminatio: cf.
diffusion. 1. the process of becoming diffused, or widely spread. 2. the spontaneous movement of molecules or other particles in solution, owing to their random thermal motion, to reach a uniform concentration throughout the solvent, a process requiring no addition of energy to the system.iffusion. 1. the process of becoming diffused, or widely spread. 2. the spontaneous movement of molecules or other particles in solution, owing to their random thermal motion, to reach a uniform concentration throughout the solvent, a process requiring no addition of energy to the system.