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triad

play
noun tri·ad \ˈtrī-ˌad also -əd\

Simple Definition of triad

  • : a group of three usually related people or things

  • : a secret Chinese criminal organization

Source: Merriam-Webster's Learner's Dictionary

Full Definition of triad

  1. 1 :  a union or group of three :  trinity

  2. 2 :  a chord of three tones consisting of a root with its third and fifth and constituting the harmonic basis of tonal music

triadic

play \trī-ˈa-dik\ adjective

triadically

play \-di-k(ə-)lē\ adverb

Examples of triad in a sentence

  1. <a triad of candlesticks on the mantle>



Did You Know?

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.

Origin and Etymology of triad

Latin triad-, trias, from Greek, from treis three


First Known Use: 1546


TRIAD Defined for Kids

triad

play
noun tri·ad \ˈtrī-ˌad\

Definition of triad for Students

  1. :  a chord made up usually of the first, third, and fifth notes of a scale




Medical Dictionary

triad

play
noun tri·ad \ˈtrī-ˌad also -əd\

Medical Definition of triad

  1. 1:  a union or group of three <a triad of symptoms>

  2. 2:  a trivalent element, atom, or radical

triadic

\trī-ˈad-ik\play adjective




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