増殖は英語で
proliferation

英語の定義

増殖
1. n. increase, propagation, multiplication
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2. v. to increase, to propagate, to multiply

proliferation
1. n. The process by which an organism produces others of its kind; breeding, propagation, procreation, reproduction.
2. n. The act of increasing or rising; augmentation, amplification, enlargement, escalation, aggrandizement.
3. n. The result of building up; buildup, accretion.
4. n. The spread of biochemical, nuclear and other weapons of mass destruction to countries not originally involved in developing them.