FTSE 100 Share Index
From Longman Business DictionaryFTSE 100 Share IndexˌFTSE 100 ˈShare ˌIndex [singular]FINANCE the Financial Times Stock Exchange 100 share index; an average of share prices in the 100 largest, most actively traded companies on the London Stock ExchangeSYNFOOTSIEBanks and insurers were among the worst performers in the FTSE 100. → index