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crotonaldehyde

American  
[kroht-n-al-duh-hahyd] / ˌkroʊt nˈæl dəˌhaɪd /

noun

Chemistry.
  1. a whitish liquid with pungent and suffocating odor, C 4 H 6 O, soluble in water, used as a solvent, in tear gas, and in organic synthesis.


Etymology

Origin of crotonaldehyde

croton(ic) ( crotonic acid ) + aldehyde