(definition) by Webster 1913 Wed Dec 22 1999 at 3:45:28

Tet`ra*thi*on"ic (?), a. [Tetra- + thionic.] Chem.

Of, pertaining to, or designating, a thionic derivative, HSO, of sulphuric acid, obtained as a colorless, odorless liquid.

 

© Webster 1913.

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