senility [sə'nɪlətɪ]

以下由轻松背单词网站提供

n.高龄，老迈

mental infirmity as a consequence of old age; sometimes shown by foolish infatuations

He is yet in green vigorous senility.他老当益壮。
The future may provide an anti-senility pill.将来或许会有一种抗衰老药片。