trŏchaeus
i, m.
I.
A metrical foot of two syllables, a long and a short (— ˘), Cic. de Or. 3, 47, 182; Quint. 9, 4, 80; Prud. στεφ. 8 praef.—
II.
Another name for the tribrachys, a metrical foot of three short syllables (˘ ˘ ˘), Cic. Or. 57, 193; Quint. 9, 4, 82.