| 单词 | gerontology |
| 释义 | gerontology —gerontological /jeuh ron'tl oj"i keuhl/, adj. —gerontologist, n. /jer'euhn tol"euh jee, jear'-/, n. the branch of science that deals with aging and the problems of aged persons. [1900-05; GERONTO- + -LOGY] |
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