Webster's 1913 Dictionary
TRABEATION
Tra `be *a "tion, n. Etym: [L.trabs, trabis, a beam, a timber. ] (Arch. )
Defn: Same as Entablature.
New American Oxford Dictionary
trabeation
tra be a tion |ˌtrābēˈāSHən ˌtreɪbiˈeɪʃən | ▶noun the use of beams in architectural construction, rather than arches or vaulting. DERIVATIVES tra be at ed |ˈtrābēˌātid |adjective ORIGIN mid 16th cent. (denoting a horizontal beam ): formed irregularly from Latin trabs, trab- ‘beam, timber ’ + -ation .
Oxford Dictionary
trabeation
trabeation |ˌtreɪbɪˈeɪʃ (ə )n | ▶noun [ mass noun ] the use of beams in architectural construction, rather than arches or vaulting. DERIVATIVES trabeated |ˈtreɪbɪətɪd |adjective ORIGIN mid 16th cent. (denoting a horizontal beam ): formed irregularly from Latin trabs, trab- ‘beam, timber ’ + -ation .