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A triad, meaning a "group of three". Triad or triade may refer to:



  • Triad (music), a chord consisting of three notes
  • Triad (band), a Swedish musical band from the late 1980s
  • "Triad: St. Patrick - Cú Chulainn - Oisín", song by Irish singer-songwriter Enya, from her 1987 debut album Enya
  • "Triad" (Pitchshifter song), song by Industrial metal band Pitchshifter from their 1993 album Desensitized
  • "Triad" (The Byrds song), 1967 song about a ménage à trois
  • "Triad", song by progressive rock band Tool from their 2001 album Lateralus


Television and film[edit]

Video games[edit]


  • Welsh Triads, collections of medieval Welsh legend and history
  • Triads of Ireland, triplet proverbs and aphorisms
  • The three parts of the Pindaric ode: the strophe, the antistrophe, and the epode

Philosophy and religion[edit]

Politics and economics[edit]

  • Economic "triad" of Japan and Southeast Asia, North America, and Western Europe in the theory of triadization

Psychology and sociology[edit]

Science and technology[edit]

Biology and medicine[edit]


See also[edit]