English Etymology From web + mail. Pronunciation Audio (US):(file) Noun webmail (usually uncountable, plural webmails) A service for sending, receiving, and/or storing email, usually on a remote web server, in such a way that it is accessible through a web browser. Hotmail, Yahoo! Mail and Gmail are well-known webmail services. The email thus stored. I'm going to check my webmail. See also email Wikiwand - on Seamless Wikipedia browsing. On steroids.