brown·field site /ˈbraʊnfiːld ˌsaɪt/ noun [countableC] British EnglishBrE a place, especially in a city, that is used for building homes, offices etc, where in the past there have already been buildings, industries etc 〔尤指城市里的〕棕色地块〔原本就有建筑和工业的地方,现在又用来重新开发建造住宅、办公楼等〕 → greenfield site