acrolein
/ˈakrəliːn/ /əˈkrəʊliɪn/(also acroleine)
noun
A colourless, acrid, liquid aldehyde obtained by dehydration of glycerol, used for making plastics and as an aquatic herbicide.
- Formula: CH2CHCHO..
Origin
Mid 19th century. From German Acrolein from classical Latin ācris sharp, pungent + olēre to smell + German -in.