ethionic acid
noun
ethi·on·ic acid
¦e|thē|¦änik-,
¦ē|,
|ˌthī|
: an unstable diacid HO3SCH2CH2OSO3H known only in solution and obtainable by adding water to ethionic anhydride
Word History
Etymology
ethionic International Scientific Vocabulary e- (from ether) + -thion- (from Greek theion brimstone) + -ic
First Known Use
1844, in the meaning defined above
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