›[C]COMMERCEan occasion when someone buys or sells something: Users can now make financial transactions in euros.Customers worry about the security of online transactions. The settlement period of securities transactions in foreign markets may be longer than in domestic markets.conduct/make a transactionCredit-card holders made seven transactions on average during the last month.
›[U]formalCOMMERCEthe process of doing business: The Government is determined to make the UK the best place for the transaction of e-business.
›[C]ITa single action such as adding a sale or a new customer, which changes data in a computer database (= computer system containing a large amount of information): The .LDF file tracks all the transactions made since the last backup.