transcription, транскрипция: [ ˈtrī-ˌad also ]
-əd noun
Etymology: Latin triad-, trias, from Greek, from treis three
Date: 1546
1. : a union or group of three : Trinity
2. : a chord of three tones consisting of a root with its third and fifth and constituting the harmonic basis of tonal music
• tri·ad·ic trī-ˈa-dik adjective
• tri·ad·i·cal·ly -di-k(ə-)lē adverb