V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

UUCP
       Unix to Unix Copy Protocol (Unix)


The Free On-line Dictionary of Computing (30 December 2018):

Unix to Unix Copy
uucp

    (uucp) A Unix utility program and
   protocol that allows one Unix system to send files to
   another via a serial line which may be a cable going
   directly from one machine's serial port to another's or may
   involve a modem at each end of a telephone line.

   Software is also available to allow uucp to work over
   Ethernet though there are better alternatives in this case,
   e.g. FTP or rcp for file transfer, SMTP for electronic
   mail or NNTP for news.

   The term is now also used to describe the large international
   network which uses UUCP to pass Usenet news and
   electronic mail, also known as "UUCPNET".

   Unix manual page: uucp(1).

   See also cu, uuencode.

   (1997-01-12)