adj.
Pronunciation: h ī - ' p ē -thr ə l
Function: adjective
Etymology: Latin hypaethrus exposed to the open air, from Greek hypaithros, from hypo- + aith ē r ether, air ― more at ETHER
Date: 1794
1 : having a roofless central space < hypaethral temple>
2 : open to the sky