any compound of carbon and another element or a radical

of or related to or containing aldehydes

a colorless liquid (a cyclic trimer of acetaldehyde) that is used as a sedative and a solvent

a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs

a colorless poisonous gas; made by the oxidation of methanol

a liquid aldehyde with a penetrating odor; made from plant hulls and corncobs; used in making furan and as a solvent

a sweet crystalline aldehyde formed by the breakdown of sugars