cross-posting ˈcross-ˌposting noun [uncountable]
COMPUTING the act of sending the same information to many different groups of people at the same time using the Internet:
• Excessive cross-posting multiplies traffic on the Internet without adding any new content.
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cross-posting UK US noun [C or U]
► COMMUNICATIONS, INTERNET the act of sending a message to more than one internet discussion group or news group at a time, or the message that is sent: »
Cross-posting should be limited to a small number of directly related groups.
»We do not accept cross-postings unless they are to highly appropriate groups.
cross-post verb [I or T]
► »
Please, only cross-post if you are sure your article is suitable for the different newsgroups.
Financial and business terms. 2012.