triad
n. countable C1 Advanced US //ˈtɹaɪˌæd// UK //tɹˈaɪæd// tri·ad
n. a group of three things or people that are connected in some way. In music, it is a chord made of three different notes.
n. a group or set of three related people or things. In music theory, it refers specifically to a chord consisting of three distinct pitches, typically built in thirds.
The song starts with a simple major triad on the piano.
The study focused on the triad of factors—poverty, lack of education, and poor health—that contribute to the cycle of inequality.
The composer utilizes a series of dissonant triads to create a sense of unease before resolving the piece into a harmonious major key during the final movement.
Usage
Often used in academic or technical contexts to describe a structural relationship between three elements.