"Proliferation" means the rapid and widespread increase or growth of something, usually referring to the multiplication or spread of objects, ideas, or organisms. Full definition
Spay / neutering is the most effective means of decreasing proliferation of unwanted dogs and cats as well as providing considerable health benefits. (ottawahumane.ca)
Most strikingly, some of the beta cells showed signs of cell proliferation, cell death and autoimmune attack. (joslin.org)
Scientists have conducted human studies that demonstrate the ability of natural progesterone to reduce cell proliferation in breast tissue. (johnleemd.com)