Isethionic I*seth`i*on"ic, a. [Is- + ethionic.] (Chem.) Pertaining to, derived from, or designating, an acid, {HO.C2H4.SO3H}, obtained as an oily or crystalline substance, by the action of sulphur trioxide on alcohol or ether. It is derivative of sulphuric acid. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • isethionic acid — (|)īs, (|)īz+... noun Etymology: isethionic International Scientific Vocabulary is + ethionic : a crystalline sulfonic acid HOC2H4SO3H obtained by action of sulfur trioxide on alcohol or ether and used in making surface active agents …   Useful english dictionary

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