- A compound containing the radical —CH=O, reducible to an alcohol (CH2OH), oxidizable to a carboxylic acid (COOH); e.g., acetaldehyde.- activated glycol a. 2-(1,2-dihydroxyethyl)thiamin pyrophosphate; an intermediate in carbohydrate metabolism and in transketolization.- angular a. the a. group attached to carbon 13 (between rings C and D) of the steroid nucleus in aldosterone.
* * *al·de·hyde 'al-də-.hīd n ACETALDEHYDE broadly any of various highly reactive compounds typified by acetaldehyde and characterized by the group CHOal·de·hy·dic .al-də-'hīd-ik adj
* * *al·de·hyde (alґdə-hīd) [alcohol + L. de away from + hydrogen] 1. any one of a large class of organic compounds containing the group CHO, that is, with the carbonyl group, CO, occurring at the end of the carbon chain. a suffix used to denote a compound occurring in aldehyde conformation. 2. acetaldehyde.
Medical dictionary. 2011.