| 词汇 | proliferation |
| 词根词缀 | 词源： 1867, "formation or development of cells," from Fr. proliferation, from prolifere "producing offspring," from L. proles "offspring" (see prolific) + ferre "to bear" (see infer). Meaning "enlargement, extension, increase" is from 1920; especially of nuclear weapons (1966). |
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