柯林斯词典quasar /ˈkweɪzɑː/ (quasars) 1. N-COUNT A quasar is an object far away in space that produces bright light and radio waves. 类星体 返回 quasar剑桥词典the centre of a galaxy (= group of stars ) that is very far away, producing large amounts of energy 类星体 返回 quasar