[] () in the US, a measure of how many people, and often what type of people, watch a particular programme on television. The information is used by companies who want to advertise their products to a suitable audience, and by television companies who set the price for advertising in and around particular programmes.尼尔森收视率（在美国，指统计有多少人、哪一种类型的人观看某一电视节目的方式。公司可利用这个信息向适合的观众投放产品广告，电视公司可用它来确定在某个节目里投放广告的价格）◆The show scored a Nielsen rating of 2.9.这个节目的尼尔森收视率为 2.9。◆The programme was cancelled following low Nielsen ratings.因尼尔森收视率低，这个节目被取消了。