Proliferation means to cause to grow or increase rapidly. 1) To grow or multiply by rapidly producing new tissue, parts, cells, or offspring. 2) To increase or spread at a rapid rate: fears that nuclear weapons might proliferate

The word proliferation can refer to:

• Nuclear proliferation
• Chemical weapon proliferation
• Cell proliferation
• The proliferative phase of wound healing
• Internet Explorer proliferation
• Proliferation of Ken Livingstone's DNA