| 释义 | mono·acid I. \| ̷ ̷ ̷ ̷ at mono-+\ adjective
 or mono·acidic \“+\; also mon·acid \(ˈ)män, (ˈ)mōn+\
 Etymology: mon- + acid or acidic
 1.  : able to react with only one molecule of a monobasic acid to form a salt or ester : characterized by one hydroxyl group — used of bases and sometimes of alcohols
 2.  : containing only one hydrogen atom replaceable by a basic atom or radical — used especially of acid salts
 II. noun
 also monacid \“\
 : an acid (as hydrochloric acid) having only one acid hydrogen atom
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