dinitrophenol

noun

di·​ni·​tro·​phe·​nol (ˌ)dī-ˌnī-trō-ˈfē-ˌnōl 

-fi-ˈnōl

: any of six isomeric crystalline compounds C₆H₄N₂O₅ some of whose derivatives are pesticides

Word History

First Known Use

1873, in the meaning defined above

Medical Definition

dinitrophenol

noun

di·​ni·​tro·​phe·​nol -ˈfē-ˌnōl  -fi-ˈ 

: any of six isomeric crystalline compounds C₆H₄N₂O₅ some of whose derivatives are pesticides

especially : a highly toxic compound that increases fat metabolism and was formerly used in weight control