'Proliferation' definitions:

Definition of 'proliferation'

(from WordNet)
noun
Growth by the rapid multiplication of parts
noun
A rapid increase in number (especially a rapid increase in the number of deadly weapons); "the proliferation of nuclear weapons" [ant: non-proliferation, nonproliferation]

Definition of 'Proliferation'

From: GCIDE
  • Proliferation \Pro*lif`er*a"tion\, n. [1913 Webster]
  • 1. (Biol.) The continuous development of cells in tissue formation; cell formation. --Virchow. [1913 Webster]
  • 2. (Zool.) The production of numerous zooids by budding, especially when buds arise from other buds in succession. [1913 Webster]