IPA: /ˈtraɪbræk/
KK: /ˈtraɪbræk/
A unit in poetry that consists of three unstressed syllables.
The poem uses a tribrach in its rhythm to create a light and flowing sound.
Tribrach is formed from "tri-" (meaning three) and "brachys" (Greek for short). The word refers to a metrical foot in poetry consisting of three short syllables.
Think of 'three' ('tri-') short sounds ('brachys') coming together — that's what a tribrach is in poetry.