Source : Webster's Revised Unabridged Dictionary (1913)

Dissemination \Dis*sem`i*na"tion\, n. [L. disseminatio: cf. F.
   diss['e]mination.]
   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.

         The universal dissemination of those writings.
                                                  --Wayland.

Source : WordNet®

dissemination
     n 1: the opening of a subject to widespread discussion and debate
          [syn: {airing}, {public exposure}, {spreading}]
     2: the property of being diffused or dispersed [syn: {diffusion}]
     3: the act of dispersing or diffusing something; "the
        dispersion of the troops"; "the diffusion of knowledge"
        [syn: {dispersion}, {dispersal}, {diffusion}]