WordReference Random House Unabridged Dictionary of American English © 2025
pro•pi•on•al•de•hyde
(prō′pē on al′də hīd′),USA pronunciation n. [Chem.]
- Chemistrya colorless, water-soluble liquid, C3H6O, having a pungent odor: used chiefly in the manufacture of plastics. Also called propyl aldehyde.
- propion(ic) + aldehyde
'propionaldehyde' also found in these entries (note: many are not synonyms or translations):