the architectural term given to those styles in which the architrave or beam (Lat. trabs) is employed instead of the arch, in the latter case the term "arcuated" being used. The principal trabeated styles are the Egyptian, Persian, Greek, Lycian, nearly all the Indian styles, the Chinese, Japanese and South American styles, in all cases owing their origin to the timber construction, for which reason the term post-and-lintel architecture is sometimes applied to it.