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 (trā′bē-ā′tĭd) also tra·be·ate (-bē-ĭt, -āt′)
adj. Architecture
Having horizontal beams or lintels rather than arches.

[From Latin trabs, trab-, beam (influenced by trabeātus, clothed in the trabea, a ritual garment); see treb- in Indo-European roots.]

tra′be·a′tion n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
There is such a thing as architectural truth.' Thomson advocated 'trabeation'.
Curiously, while substituting a high-peaked gable for the expected cupola, it replaces the usual trabeation of the reliquary chamber below with a wide and tall arch incorporating lobed tracery on each of the four sides.
They refer to windows as "glazing" or "fenestration" and a beam or lintel as "trabeation" ...