单词 monothionic 释义 monothionic, a. Chem.|mnank|[See mono- 2 and dithionic.]In monothionic acid, a very unstable fluid, H2SO2, obtained by the action of diluted sulphuric acid on iron or zinc, with exclusion of air.1891in Syd. Soc. Lex.{var l=document....