N-COUNT(可数名词) If an elderly person forgets something or makes a mistake and you refer to this as a senior moment, you mean that the person forgot the thing or made the mistake because they are old and their mental abilities are declining. 老年失忆症 [美国英语][非正式]
He is 69 in February and sometimes has a senior moment, when the flow of words dries up.
他二月份69岁,偶尔出现老年失忆症,不再滔滔不绝了。