senescent

/sɪˈnesnt/ 13GRE
growing old 衰老的

adjective [原级]衰老的;变老的;老化的

But he cautions that further research is needed to understand the effects of removing senescent cells.
但他警告说,还需要进一步研究,以了解清除衰老细胞的影响。

单词造句:
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Mice fed a restricted diet had a reduced accumulation of senescent cells in their livers and intestines. 控制老鼠的饮食热量减少了牠们肝脏和小肠老化细胞的数目。
The scientists started by genetically engineering mice to have a specific molecule in their senescent cells. 科学家们开始让基因工程小鼠的衰老细胞中有一个特定的分子。