Definition of mesidine in US English:

mesidine

noun

Chemistry
  • A colourless oily liquid obtainable by boiling nitromesitylene with tin and hydrochloric acid; 2,4,6-trimethylaniline, (CH₃)₃·C₆H₂·NH₂.

Origin

Mid 19th century; earliest use found in William Gregory (1803–1858), chemist and psychic investigator. From mes- + -idine. Slightly earlier attested in the compound nitromesidine.

Pronunciation

mesidine

/ˈmɛsɪdiːn/