/ˌpaɪəˈnɪə(r) ||; ˌpaɪəˈnɪr/noun[C] 1 a pioneer (in/of sth) a person who is one of the first to develop an area of human knowledge, culture, etc 先锋；先驱者；开创者: Yuri Gagarin was one of the pioneers of space exploration. 尤里．加加林是太空探测的先驱之一。
2 a person who is one of the first to go and live in a particular area 拓荒者；开拓者；开辟者:
the pioneers of the American West 美国西部的拓荒者
pioneer verb [T]
a technique pioneered in the US 在美国开创的一项技术