[] a company that sells goods and services on the Internet, especially one whose address ends ‘.com’（尤指网址以 .com 结尾的）网络公司，电子商务公司◆The weaker dotcoms have collapsed.实力较弱的网络公司已经倒闭。◆a dotcom millionaire网络富豪◆the bursting of the dotcom bubble (= when many dotcoms failed)网络泡沫的破灭⨁a dotcom business / company / start-up网络业务／公司／创业⨁the dotcom boom / bubble / collapse / crash网络繁荣／泡沫；网络泡沫破灭