HYPAETHRAL
Meaning of HYPAETHRAL in English
adj. (also hypethral) 1 open to the sky; roofless. 2 open-air.
[ L hypaethrus f. Gk hupaithros (as HYPO-, aither air) ]
Concise Oxford English dictionary.
Краткий оксфордский словарь английского языка.
2012