[{"Bold_text": "noun", "List Items": ["a group of three, especially of three closely related persons or things.", "Chemistry.an element, atom, or group having a valence of three.Compare monad(def2) monad(def2), dyad(def3) dyad(def3).a group of three closely related compounds or elements, as isomers or halides.", "an element, atom, or group having a valence of three.Compare monad(def2) monad(def2), dyad(def3) dyad(def3).", "a group of three closely related compounds or elements, as isomers or halides.", "Music.a chord of three tones, especially one consisting of a given tone with its major or minor third and its perfect, augmented, or diminished fifth.", "Triad,Military.the three categories of delivery systems for strategic nuclear weapons, namely bombers, land-based missiles, and missile-firing submarines:The report says this missile is required in order to sustain an effective air leg of the Triad."]}]