triad
/ˈtraɪəd/noun
1
- a group or set of three connected people or things三人组合; 三件套：
the triad of medication, diet, and exercise are necessary in diabetes care.
药物治疗、规定饮食和身体锻炼是糖尿病治疗中必不可少的三步骤。
1.1
- a chord of three musical notes, consisting of a given note with the third and fifth above it三和弦。
1.2
- a Welsh form of literary composition with an arrangement of subjects or statements in groups of three（威尔士文学作品中将主题或叙述安排为三段的）三题词。
2
- （亦作Triad）a secret society originating in China, typically involved in organized crime三合会（起源于中国的秘密团体, 常进行有组织犯罪）。
2.1
- a member of such a society三合会会员。
派生词
triadic
adjective （限义项1）词源
mid 16th cent.: from French triade, or via late Latin from Greek trias, triad-, from treis 'three'.