American English

Definition of dot-com noun from the Oxford Advanced American Dictionary

 

dot-com

 noun
(also dotcom) noun
NAmE//ˌdɑt ˈkɑm//
 
 
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a company that sells goods and services on the Internet, especially one whose address ends “.com” The weaker dot-coms have collapsed. a dot-com millionaire
See the Oxford Advanced Learner's Dictionary entry: dot-com