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The best-known type of triad is a type of musical chord consisting of three notes. A D-major triad is made up of the notes D, F-sharp, and A; an F-minor triad is made up of F, A-flat, and C; and so on. Major and minor triads form the basis of tonal music, and songs and other pieces usually end with a triadic harmony. In medicine, a triad is a set of three symptoms that go together. The Chinese criminal organizations called triads got their name from the triangular symbol that they used back when they began, centuries ago, as patriotic organizations. Today, with over 100,000 members, the triads operate in the U.S., Canada, and many other countries.
Examples of triad in a Sentence
Lance Eliot, Forbes.com, 17 Apr. 2025
The pitch, written by Nick Bilton, focuses on a turbulent time on the island paradise when the aspiring mob boss battled elements like triads and U.S. military to wrest control.
—Mike Fleming Jr, Deadline, 27 Mar. 2025
Among the findings were rings made of gold and other metals, small gold amulets (including a triad statue of the ancient Egyptian deities Amun, Mut, and Khonsu) and amulets of deities as animals, a metallic brooch, and a variety of beads.
—Francesca Aton, ARTnews.com, 6 Mar. 2025
Together, the three gods made the divine triad at Thebes, and the temple for Amun is a central part of the Karnak complex.
—Irene Wright, Miami Herald, 28 Feb. 2025
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Cite this Entry
“Triad.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/triad. Accessed 4 May. 2025.
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triad
noun
Medical Definition
triad
noun
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