a company that sells goods and services on the internet, especially one whose address ends ‘.com’ （尤指网址末尾为 .com 的）网络公司 The weaker dot-coms collapsed. 实力较弱的网络公司倒闭了。 a dot-com millionaire 一位网络公司富翁
Word Origin1990s: from ‘.com’ in an internet address, indicating a commercial site.