diffusive
a. Senses relating to dispersion.
b. Having the quality of spreading over a wide area or among a large number of people; diffuse.
c. Of an immaterial or abstract thing, as knowledge, virtue, etc.: tending to be spread among a large number of people; pervasive, widespread. Also: of or relating to such diffusion.
https://www.oed.com/view/Entry/52545?redirectedFrom=diffusive#eid