From Longman Business DictionaryFTSE 100 Share IndexˌFTSE 100 ˈShare ˌIndex [singular]FINANCEthe FinancialTimesStockExchange 100 shareindex; 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
