any major transverse part of the body of a church, usually crossing the nave, at right angles, at the entrance to the choir.
an arm of this, on either side of the central aisle of a church.
Origin of transept
Related formstran·sep·tal, adjectivetran·sep·tal·ly, adverb
From the Anglo-Latin
dating back to 1530–40.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for transept
Historical Examples of transept
British Dictionary definitions for transept
Derived Formstranseptal, adjective
either of the two wings of a cruciform church at right angles to the nave
Word Origin for transept
C16: from Anglo-Latin transeptum, from Latin trans- + saeptum enclosure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for transept
"transverse section of a cruciform church," 1530s, from Medieval Latin transeptum, from Latin trans- "across" (see trans-) + saeptum "fence, partition, enclosure" (see septum). Rare before 1700.
Online Etymology Dictionary, © 2010 Douglas Harper