Simple Definition of triad
: a group of three usually related people or things
: a secret Chinese criminal organization
Examples of triad in a sentence
<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
Definition of triad for Students
: a chord made up usually of the first, third, and fifth notes of a scale
Seen and Heard
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