Definition of tierced in English:

tierced

(also tiercé)

adjective

Heraldry
  • Divided into three equal parts of different tinctures.

    • ‘They are an example of the rare form of tierced arms, that is three coats of arms set side by side.’

Origin

Early 18th century: originally as tiercé ‘divided into three parts’, French past participle of tiercer.

Pronunciation

tierced

/tɪəst/