/trænsˈpærənsi ||; trænsˈpɛrənsɪ/noun [C] (plural transparencies) a piece of plastic on which you can write or draw or that has a picture, etc on it that you look at by putting it on a special machine (projector) and shining light through it 投影片；透明正片: a transparency for the overhead projector 用于高射投影机的投影片 ☞Look at slide ²(4). 参看slide^2(4)。