| 1. | Also called acetaldol. a colorless, syrupy, water-soluble liquid, C4H8O2, formed by the condensation of acetaldehyde: used chiefly in the manufacture of rubber vulcanizers and accelerators, and in perfumery. |
| 2. | any of a class of compounds containing both an alcohol and an aldehyde functional group, formed by a condensation reaction between aldehyde or ketone molecules. |
aldol al·dol (āl'dôl, -dōl)
n.
A thick, colorless to pale yellow liquid obtained from acetaldehyde and used in perfumery and as a solvent.
A similar aldehyde containing the group CH3OH-CO-CHOH.