The Collaborative International Dictionary
sulphovinic acid
OEnothionic \[OE]`no*thi*on"ic\, a. [Gr. o'i^nos wine + thionic.] (Chem.) Pertaining to an acid now called sulphovinic acid or ethyl sulphuric acid.
Wiktionary
sulphovinic acid
n. (context chemistry obsolete English) ethylsulphuric acid