n. 1 either arm of the part of a cross-shaped church at right angles to the nave (north transept; south transept). 2 this part as a whole. transeptal adj.
[ mod.L transeptum (as TRANS-, SEPTUM) ]
TRANSEPT
Meaning of TRANSEPT in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012