Here you will find one or more explanations in English for the word Hypethral.
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Hypethral
Hypaethral Hy*p[ae]"thral, Hypethral Hy*pe"thral, a. [L.
hypaethrus in the open air, uncovered, Gr. ?; ? under + ?
ether, the clear sky.] (Arch.)
Exposed to the air; wanting a roof; -- applied to a building
or part of a building. --Gwilt.
Meaning of Hypethral from wikipedia