(?), a. [Ethyl + thionic.] (Chem.) Pertaining to, derived from, or designating, an acid so called.
[1913 Webster]

Ethionic acid (Chem.), a liquid derivative of ethylsulphuric and sulphuric (thionic) acids, obtained by the action of sulphur trioxide on absolute alcohol.





(?) }, n. [L. Aethiops, Gr. ; to burn + face.] A native or inhabitant of Ethiopia; also, in a general sense, a negro or black man.





(?), } a. Of or relating to Ethiopia or the Ethiopians.
[1913 Webster]


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Tue 22nd June 2021