Acetaldehyde n. : Acetic aldehyde. See Aldehyde.

Example:
What is Acetaldehyde and how do you eliminate it from Carbon Dioxide gas?

Taxonomy
acetaldehyde dehydrogenase, Reactions, condensation reactions, compounds, conversion, free encyclopedia, ethanol, acetal, MeCHO, 1941, Vol. 1, Alzheimer's disease, enzyme, alcohol dehydrogenase, acetic acid, derivatives, carcinogen, aldol condensation.

Defination from the web:
Acetaldehyde occurs naturally in ripe fruit, coffee, and bread, and is produced by plants as part of their normal metabolism. ... With respect to its condensation reactions, acetaldehyde is prochiral. ...