What is "augmented triad"

n. (context music English) a triad with an augmented fifth between the bottom note and the top note

In music, an augmented triad is a triad, or chord, consisting of two major thirds (an augmented fifth). The term augmented triad arises from an augmented triad being considered a major chord whose top note (fifth) is raised, or augmented. It can be represented by the integer notation {0, 4, 8}.