reduplicationn.
英 rɪ,djuːplɪ'keɪʃən | 美 rɪ,djʊplə'keʃən
中文n. 加倍；复本；复制器；重复
词根词源
reduplication (n.)1580s, from French réduplication (16c.), from Late Latin reduplicationem (nominative reduplicatio), noun of action from past participle stem of reduplicare (see reduplicate).
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