Hȳ-pæ'thral or Hȳ-pē'thral, a.

a. [Lat. hypæthrus, Gr. ὕπαιθρος, ὑπαίθριος, under the sky, in the open air, from ὑπό, under, and αἰθήρ, ether, the clear sky.] (Arch.) Exposed to the air; wanting a roof;—applied to a building or temple. Gwilt.