malondialdehyde
/ˌmaləndʌɪˈaldɪhʌɪd/Chemistry
noun
The aldehyde, CH2(CHO)2, of malonic acid, which occurs naturally as a breakdown product of lipid hydroperoxides and has mutagenic and cytotoxic properties owing to its ability to cross-link various molecules.
Origin
Early 20th century; earliest use found in Journal of the Chemical Society. From malon- + di- + aldehyde.