de·scent/dɪ`sɛnt; dɪˈsent/ n 1 [C,U] the process of going down 下降，降下: The plane began its descent. 飞机开始下降。 → opposite 反义词 ASCENT 2 [U] your family origins, especially the country that you came from 祖籍，血统，世系: be of Russian/Irish/German etc descent Tara's family is of Irish descent. 塔拉的家庭祖籍是爱尔兰。