triad

• n. 3つのグループ；3価の元素

tri-, 3, -ad, single, monad, 語源的にはモナドと同じ。

triad (n.)

1540s, "group or set of three," from Late Latin trias (genitive triadis), from Greek trias (genitive triados) "a triad, the number three," from treis "three" (see three). Musical sense of "chord of three notes" is from 1801. Related: Triadic.

1. Self-knowledge in this case a perspective on the entire triad .

この意味で、自己認識は「自分、世界と神」という三元体系（ triad ）を透視する視点（perspective）.

2.For the faculty，there exists the triad of responsibilities：teaching，research，and service.

教員は、教育、研究、サービスの3つの責任を負わなければならない。

3.This coordinate system is called the triad at the point.

この座標系をその点の三面形座標系と呼ぶ。

4.Diagnosis is based on a clinical triad .

本症の診断は臨床上の三徴に依存する。

5.No individual or organization is consciously concerned with the triad of economic problems.

どの個人や機関も三位一体の経済問題に意識的に関心を持っているわけではない。