n. (US clearstory) (pl. -ies) 1 an upper row of windows in a cathedral or large church, above the level of the aisle roofs. 2 US a raised section of the roof of a railway carriage, with windows or ventilators.
[ ME f. CLEAR + STOREY ]
CLERESTORY
Meaning of CLERESTORY in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012