1. 
   Isethionic
   I·seth`i·on'ic adjective [ Is- + ethionic .] (Chemistry) Pertaining to, derived from, or designating, an acid, HO.C ₂ H ₄ .SO ₃ H, obtained as an oily or crystalline substance, by the action of sulph...
   Found op http://www.encyclo.co.uk/webster/I/101
   
   
2. 
   isethionic
   <chemistry> 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. ... Origin: Is- + ethionic. ... Source: Websters Dictionary ... (01 Mar 1998)...
   Found op http://www.mondofacto.com/facts/dictionary?isethionic
   
   
3. 
   Isethionic
   • (a.) 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.
   Found op http://thinkexist.com/dictionary/meaning/isethionic/
   
   

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