Overproliferation is defined as an excessive growth in numbers, especially in relation to cells or organisms. Synonyms for this term include hyperplasia, surplus, overpopulation, explosion, overgrowth, and overabundance. Overgrowth suggests an excessive or uncontrolled growth of cells, while overpopulation implies a similarly uncontrolled growth in the number of individuals in a given area. Hyperplasia is used more specifically in medical contexts, while surplus and overabundance are more general terms that could refer to any situation where there is simply too much of something. Explosion is a metaphorical term that suggests sudden and rapid growth, like a literal explosion.