an inflammable liquid that vaporizes readily, used esp as a solvent and formerly as a general anaesthetic: formula C2H5OC2H5
any of various organic compounds characterized by an oxygen atom attached to two alkyl groups
literary the clear blue sky or upper regions of the atmosphere
a medium formerly held to permeate all space and transmit electromagnetic waves, e.g. light and radio waves
etheric /eeʹtherik/ adj
[Middle English via Latin from Greek aithēr, from aithein to ignite, blaze]