The act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; dispersion.
The act of passing by osmosis through animal membranes, as in the distribution of poisons, gases, etc., through the body. Unlike absorption, diffusion may go on after death, that is, after the blood ceases to circulate.
The advancement and diffusion of knowledge is the only guardian of true liberty. James Madison
Every one must understand that, whatever be the evil of slavery, it is not increased by its diffusion. Every one familiar with it knows that it is in proportion to its sparseness that it becomes less objectionable. Wherever there is an immediate connexion between the master and slave, whatever there is of harshness in the system is diminished. Jefferson Davis
Knowledge is not simply another commodity. On the contrary. Knowledge is never used up. It increases by diffusion and grows by dispersion. Daniel J. Boorstin
With today's fast films, you can light the way your eye sees the scene. You can abuse the film and create subtleties in contrast with light and exposure, diffusion and filters. That's what makes it an art. Conrad Hall
On the diffusion of education among the people rest the preservation and perpetuation of our free institutions. Daniel Webster