dot-com BrE AmE , dot.com, dot com /ˌdɒt ˈkɒm $ ˌdɑːt ˈkɑːm/ adjective [only before noun] informal
relating to a person or company whose business is done using the Internet or involves the Internet:
a dot-com company
dot-com millionaires
—dot-com noun [countable] :
Several of the leading dot-coms saw their share prices slide yesterday.