quadralogue/ˈkwɒdɹəlɒɡ/EtymologyFrom quadra- + -logue.nounA discourse or colloquy by four people.“one of the first, things I did was to form a quadralogue between the Navy, in particular trie Secretary of the Navy, the Assistant Secretary for Systems Analysis, and myself (including our staffs, of course), and the subcommittee”