tribrach

A metrical foot having three short or unstressed syllables.

Same as tribrachial.

In ancient prosody, a foot consisting of three short times or syllables, two of which belong to the thesis and one to the arsis, or vice versa.

A poetic foot of three short syllables, .

A classical metrical foot having three short or unstressed syllables

A circular platform on three legs each having levelling screws; used to connect a theodolite to a tripod