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

NETBEUI
       NETBIOS Extended User Interface (UI)


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

NetBEUI

   NetBIOS Extended User Interface.  The network transport
   protocol used by all of Microsoft's network systems and
   IBM's LAN Server based systems.

   NetBEUI is often confused with NetBIOS.  NetBIOS is the
   applications programming interface and NetBEUI is the
   transport protocol.