DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   10base5
   thicknet
      <networking> An Ethernet network cabling specification
      operating at ten Mbps, "baseband" (as opposed to radio
    frequency), and with a maximum single cable length of 500
      metres.  This is normally carried on RG8 cable.
      Compare 10base2, 10baseT.
      (2002-06-17)